var bibbase_data = {"data":"\"Loading..\"\n\n
\n\n \n\n \n\n \n \n\n \n\n \n \n\n \n\n \n
\n generated by\n \n \"bibbase.org\"\n\n \n
\n \n\n
\n\n \n\n\n
\n\n Excellent! Next you can\n create a new website with this list, or\n embed it in an existing web page by copying & pasting\n any of the following snippets.\n\n
\n JavaScript\n (easiest)\n
\n \n <script src=\"https://bibbase.org/show?bib=https%3A%2F%2Fwww.dropbox.com%2Fs%2Fvr7ylt2wle194gl%2FPublications_normal.bib%3Fraw%3D1&commas=true&jsonp=1&jsonp=1\"></script>\n \n
\n\n PHP\n
\n \n <?php\n $contents = file_get_contents(\"https://bibbase.org/show?bib=https%3A%2F%2Fwww.dropbox.com%2Fs%2Fvr7ylt2wle194gl%2FPublications_normal.bib%3Fraw%3D1&commas=true&jsonp=1\");\n print_r($contents);\n ?>\n \n
\n\n iFrame\n (not recommended)\n
\n \n <iframe src=\"https://bibbase.org/show?bib=https%3A%2F%2Fwww.dropbox.com%2Fs%2Fvr7ylt2wle194gl%2FPublications_normal.bib%3Fraw%3D1&commas=true&jsonp=1\"></iframe>\n \n
\n\n

\n For more details see the documention.\n

\n
\n
\n\n
\n\n This is a preview! To use this list on your own web site\n or create a new web site from it,\n create a free account. The file will be added\n and you will be able to edit it in the File Manager.\n We will show you instructions once you've created your account.\n
\n\n
\n\n

To the site owner:

\n\n

Action required! Mendeley is changing its\n API. In order to keep using Mendeley with BibBase past April\n 14th, you need to:\n

    \n
  1. renew the authorization for BibBase on Mendeley, and
    2. \n
  2. update the BibBase URL\n in your page the same way you did when you initially set up\n this page.\n
    3. \n
\n

\n\n

\n \n \n Fix it now\n

\n
\n\n
\n\n\n
\n \n \n
\n
\n  \n 2024\n \n \n (5)\n \n \n
\n
\n \n \n
\n \n\n \n \n \n \n \n Tidal turbine array modelling using goal-oriented mesh adaptation.\n \n \n \n\n\n \n Wallwork, J. G, Angeloudis, A., Barral, N., Mackie, L., Kramer, S. C, & Piggott, M. D\n\n\n \n\n\n\n Journal of Ocean Engineering and Marine Energy, 10(1): 193–216. 2024.\n \n\n\n\n
\n\n\n\n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n\n\n\n
\n 
@article{wallwork2024tidal,\n  title={Tidal turbine array modelling using goal-oriented mesh adaptation},\n  author={Wallwork, Joseph G and Angeloudis, Athanasios and Barral, Nicolas and Mackie, Lucas and Kramer, Stephan C and Piggott, Matthew D},\n  journal={Journal of Ocean Engineering and Marine Energy},\n  volume={10},\n  number={1},\n  pages={193--216},\n  year={2024},\n  publisher={Springer}\n}\n\n
\n
\n\n\n\n
\n\n\n
\n \n\n \n \n \n \n \n Tidal stream energy resource assessment of the Pentland Firth: practical and accessible constraints.\n \n \n \n\n\n \n Patel, M, Smyth, A, Angeloudis, A., & Adcock, T. A.\n\n\n \n\n\n\n In UK Young Coastal Scientists and Engineers Conference, YCSEC2024. 2024.\n \n\n\n\n
\n\n\n\n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n\n\n\n
\n 
@incollection{patel2024tidal,\n  title={Tidal stream energy resource assessment of the Pentland Firth: practical and accessible constraints},\n  author={Patel, M and Smyth, A and Angeloudis, Athanasios and Adcock, Thomas AA},\n  booktitle={UK Young Coastal Scientists and Engineers Conference, YCSEC2024},\n  year={2024}\n}\n\n\n
\n
\n\n\n\n
\n\n\n
\n \n\n \n \n \n \n \n Iterative dynamics-based mesh discretisation for multi-scale coastal ocean modelling.\n \n \n \n\n\n \n Old, C., Sellar, B., & Angeloudis, A.\n\n\n \n\n\n\n Journal of Ocean Engineering and Marine Energy,1–22. 2024.\n \n\n\n\n
\n\n\n\n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n\n\n\n
\n 
@article{old2024iterative,\n  title={Iterative dynamics-based mesh discretisation for multi-scale coastal ocean modelling},\n  author={Old, Chris and Sellar, Brian and Angeloudis, Athanasios},\n  journal={Journal of Ocean Engineering and Marine Energy},\n  pages={1--22},\n  year={2024},\n  publisher={Springer}\n}\n\n
\n
\n\n\n\n
\n\n\n
\n \n\n \n \n \n \n \n Drivers of Laptev Sea interannual variability in salinity and temperature.\n \n \n \n\n\n \n Hudson, P. A, Martin, A. C., Josey, S. A, Marzocchi, A., & Angeloudis, A.\n\n\n \n\n\n\n Ocean Science, 20(2): 341–367. 2024.\n \n\n\n\n
\n\n\n\n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n\n\n\n
\n 
@article{hudson2024drivers,\n  title={Drivers of Laptev Sea interannual variability in salinity and temperature},\n  author={Hudson, Phoebe A and Martin, Adrien CH and Josey, Simon A and Marzocchi, Alice and Angeloudis, Athanasios},\n  journal={Ocean Science},\n  volume={20},\n  number={2},\n  pages={341--367},\n  year={2024},\n  publisher={Copernicus Publications G{\\"o}ttingen, Germany}\n}\n\n
\n
\n\n\n\n
\n\n\n
\n \n\n \n \n \n \n \n Thetis-SWAN: A Python-interfaced wave–current interactions coupled system.\n \n \n \n\n\n \n Fragkou, A. K, Old, C., Venugopal, V., & Angeloudis, A.\n\n\n \n\n\n\n Environmental Modelling & Software,106034. 2024.\n \n\n\n\n
\n\n\n\n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n\n\n\n
\n 
@article{fragkou2024thetis,\n  title={Thetis-SWAN: A Python-interfaced wave--current interactions coupled system},\n  author={Fragkou, Anastasia K and Old, Christopher and Venugopal, Vengatesan and Angeloudis, Athanasios},\n  journal={Environmental Modelling \\& Software},\n  pages={106034},\n  year={2024},\n  publisher={Elsevier}\n}\n
\n
\n\n\n\n
\n\n\n\n\n\n
\n
\n\n
\n
\n  \n 2023\n \n \n (7)\n \n \n
\n
\n \n \n
\n \n\n \n \n \n \n \n \n Sensitivity of tidal range assessments to harmonic constituents and analysis timeframe.\n \n \n \n \n\n\n \n Pappas, K., Mackie, L., Zilakos, I., van der Weijde , A. H., & Angeloudis, A.\n\n\n \n\n\n\n Renewable Energy, 205: 125-141. 2023.\n \n\n\n\n
\n\n\n\n \n \n \"SensitivityPaper\n  \n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n\n \n  \n \n 1 download\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
\n 
@article{PAPPAS2023125,\ntitle = {Sensitivity of tidal range assessments to harmonic constituents and analysis timeframe},\njournal = {Renewable Energy},\nvolume = {205},\npages = {125-141},\nyear = {2023},\nissn = {0960-1481},\ndoi = {https://doi.org/10.1016/j.renene.2023.01.062},\nurl = {https://www.sciencedirect.com/science/article/pii/S096014812300071X},\nauthor = {Konstantinos Pappas and Lucas Mackie and Ilias Zilakos and Adriaan Hendrik {van der Weijde} and Athanasios Angeloudis},\nkeywords = {Tidal range, Tidal range energy, Tide variability, Energy assessment, Resource assessment},\n}\n\n\n
\n
\n\n\n\n
\n\n\n
\n \n\n \n \n \n \n \n \n Physical Modelling of Tidal Stream Turbine Wake Structures under Yaw Conditions.\n \n \n \n \n\n\n \n Zhang, C., Zhang, J., Angeloudis, A., Zhou, Y., Kramer, S. C., & Piggott, M. D.\n\n\n \n\n\n\n Energies, 16(4). 2023.\n \n\n\n\n
\n\n\n\n \n \n \"PhysicalPaper\n  \n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n  \n \n 1 download\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n\n\n\n
\n 
@Article{Zhang2023,\nAUTHOR = {Zhang, Can and Zhang, Jisheng and Angeloudis, Athanasios and Zhou, Yudi and Kramer, Stephan C. and Piggott, Matthew D.},\nTITLE = {Physical Modelling of Tidal Stream Turbine Wake Structures under Yaw Conditions},\nJOURNAL = {Energies},\nVOLUME = {16},\nYEAR = {2023},\nNUMBER = {4},\nARTICLE-NUMBER = {1742},\nURL = {https://www.mdpi.com/1996-1073/16/4/1742},\nISSN = {1996-1073},\nABSTRACT = {Tidal stream turbines may operate under yawed conditions due to variability in ocean current directions. Insight into the wake structure of yawed turbines can be essential to ensure efficient tidal stream energy extraction, especially for turbine arrays where wake interactions emerge. We studied experimentally the effects of turbines operating under varying yaw conditions. Two scenarios, including a single turbine and a set of two turbines in alignment, were configured and compared. The turbine thrust force results confirmed that an increasing yaw angle results in a decrease in the turbine streamwise force and an increase in the turbine spanwise force. The velocity distribution from the single turbine scenario showed that the wake deflection and velocity deficit recovery rate increased at a rate proportional to the yaw angle. The two-turbine scenario results indicated that the deployment of an upstream non-yawed turbine significantly limited the downstream wake steering (i.e., the wake area behind the downstream turbine). Interestingly, a yawed downstream turbine was seen to influence the steering of both the upstream and the downstream wakes. These systematically derived data could be regarded as useful references for the numerical modelling and optimisation of large arrays.},\nDOI = {10.3390/en16041742}\n}\n\n
\n
\n\n\n
\n Tidal stream turbines may operate under yawed conditions due to variability in ocean current directions. Insight into the wake structure of yawed turbines can be essential to ensure efficient tidal stream energy extraction, especially for turbine arrays where wake interactions emerge. We studied experimentally the effects of turbines operating under varying yaw conditions. Two scenarios, including a single turbine and a set of two turbines in alignment, were configured and compared. The turbine thrust force results confirmed that an increasing yaw angle results in a decrease in the turbine streamwise force and an increase in the turbine spanwise force. The velocity distribution from the single turbine scenario showed that the wake deflection and velocity deficit recovery rate increased at a rate proportional to the yaw angle. The two-turbine scenario results indicated that the deployment of an upstream non-yawed turbine significantly limited the downstream wake steering (i.e., the wake area behind the downstream turbine). Interestingly, a yawed downstream turbine was seen to influence the steering of both the upstream and the downstream wakes. These systematically derived data could be regarded as useful references for the numerical modelling and optimisation of large arrays.\n
\n\n\n
\n\n\n
\n \n\n \n \n \n \n \n Drivers of Laptev Sea interannual variability in salinity and temperature from satellite data.\n \n \n \n\n\n \n Hudson, P., Martin, A., Josey, S., Marzocchi, A., & Angeloudis, A.\n\n\n \n\n\n\n In EGU23, Vienna, Austria. 2023.\n \n\n\n\n
\n\n\n\n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n\n\n\n
\n 
@incollection{hudson2023drivers,\n  title={Drivers of Laptev Sea interannual variability in salinity and temperature from satellite data},\n  booktitle = {EGU23, Vienna, Austria},\n  author={Hudson, Phoebe and Martin, Adrien and Josey, Simon and Marzocchi, Alice and Angeloudis, Athanasios},\n  year={2023},\n  institution={Copernicus Meetings}\n}\n\n\n
\n
\n\n\n\n
\n\n\n
\n \n\n \n \n \n \n \n \n Tidal range resource of the Patagonian shelf.\n \n \n \n \n\n\n \n Barclay, V. M., Neill, S. P., & Angeloudis, A.\n\n\n \n\n\n\n Renewable Energy. 2023.\n \n\n\n\n
\n\n\n\n \n \n \"TidalPaper\n  \n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
\n 
@article{BARCLAY2023,\ntitle = {Tidal range resource of the Patagonian shelf},\njournal = {Renewable Energy},\nyear = {2023},\nissn = {0960-1481},\ndoi = {https://doi.org/10.1016/j.renene.2023.04.001},\nurl = {https://www.sciencedirect.com/science/article/pii/S0960148123004433},\nauthor = {Vicky Martí Barclay and Simon P. Neill and Athanasios Angeloudis},\nkeywords = {Tidal range power, Tidal lagoons, Zero dimensional modelling, Resource assessment, Patagonian shelf},\n}\n\n\n
\n
\n\n\n\n
\n\n\n
\n \n\n \n \n \n \n \n \n Benchmarking a two-way coupled coastal wave–current hydrodynamics model.\n \n \n \n \n\n\n \n Fragkou, A. K., Old, C., Venugopal, V., & Angeloudis, A.\n\n\n \n\n\n\n Ocean Modelling, 183: 102193. 2023.\n \n\n\n\n
\n\n\n\n \n \n \"BenchmarkingPaper\n  \n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
\n 
@article{FRAGKOU2023102193,\ntitle = {Benchmarking a two-way coupled coastal wave–current hydrodynamics model},\njournal = {Ocean Modelling},\nvolume = {183},\npages = {102193},\nyear = {2023},\nissn = {1463-5003},\ndoi = {https://doi.org/10.1016/j.ocemod.2023.102193},\nurl = {https://www.sciencedirect.com/science/article/pii/S1463500323000343},\nauthor = {Anastasia K. Fragkou and Christopher Old and Vengatesan Venugopal and Athanasios Angeloudis},\nkeywords = {Wave–current interactions, Coupled model, Shallow-water equation modelling, Spectral wave modelling, Validation},\nabstract = {Wave–current interaction phenomena are often represented through coupled model frameworks in ocean modelling. However, benchmarking of these models is scarce, revealing a substantial research challenge. We seek to address this through a selection of cases for coupled wave–current interaction modelling. This comprises a series of analytical and experimental test cases spanning three diverse conditions of wave run-up, one scenario of waves opposing a current flow, and a 2-D arrangement of waves propagating over a submerged bar. We simulate these through coupling the spectral wave model, Simulating WAves Nearshore (SWAN), with the coastal hydrodynamics shallow-water equation model, Thetis, using the Basic Model Interface (BMI) structure. By comparing calibrated versus default parameter settings we identify and highlight calibration uncertainties that emerge across a range of potential applications. Calibrated model results exhibit good correlation against experimental and analytical data, alongside benchmarked wave–current model predictions, where available. Specifically, inter-model comparisons show equivalent accuracy. Finally, the coupled model we developed as part of this work showcases its ability to account for wave–current effects, in a manner extensible to other coupled processes through BMI and applicable to more complex geometries.}\n}\n\n
\n
\n\n\n
\n Wave–current interaction phenomena are often represented through coupled model frameworks in ocean modelling. However, benchmarking of these models is scarce, revealing a substantial research challenge. We seek to address this through a selection of cases for coupled wave–current interaction modelling. This comprises a series of analytical and experimental test cases spanning three diverse conditions of wave run-up, one scenario of waves opposing a current flow, and a 2-D arrangement of waves propagating over a submerged bar. We simulate these through coupling the spectral wave model, Simulating WAves Nearshore (SWAN), with the coastal hydrodynamics shallow-water equation model, Thetis, using the Basic Model Interface (BMI) structure. By comparing calibrated versus default parameter settings we identify and highlight calibration uncertainties that emerge across a range of potential applications. Calibrated model results exhibit good correlation against experimental and analytical data, alongside benchmarked wave–current model predictions, where available. Specifically, inter-model comparisons show equivalent accuracy. Finally, the coupled model we developed as part of this work showcases its ability to account for wave–current effects, in a manner extensible to other coupled processes through BMI and applicable to more complex geometries.\n
\n\n\n
\n\n\n
\n \n\n \n \n \n \n \n \n UK studies on the wider energy system benefits of tidal stream.\n \n \n \n \n\n\n \n Pudjianto, D., Frost, C., Coles, D., Angeloudis, A., Smart, G., & Strbac, G.\n\n\n \n\n\n\n Energy Adv.,-. 2023.\n \n\n\n\n
\n\n\n\n \n \n \"UKPaper\n  \n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n\n \n  \n \n 1 download\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n\n\n\n
\n 
@Article{D2YA00251E,\nauthor ="Pudjianto, Danny and Frost, Ciaran and Coles, Daniel and Angeloudis, Athanasios and Smart, Gavin and Strbac, Goran",\ntitle  ="UK studies on the wider energy system benefits of tidal stream",\njournal  ="Energy Adv.",\nyear  ="2023",\npages  ="-",\npublisher  ="RSC",\ndoi  ="10.1039/D2YA00251E",\nurl  ="http://dx.doi.org/10.1039/D2YA00251E",\n}\n\n
\n
\n\n\n\n
\n\n\n
\n \n\n \n \n \n \n \n \n Mitigation of assembly constraints for floating offshore wind turbines using discrete event simulation.\n \n \n \n \n\n\n \n Smith, B M., Ongley, J, Angeloudis, A, & Thies, P R\n\n\n \n\n\n\n Journal of Physics: Conference Series, 2626(1): 012044. oct 2023.\n \n\n\n\n
\n\n\n\n \n \n \"MitigationPaper\n  \n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n\n\n\n
\n 
@article{Smith_2023,\ndoi = {10.1088/1742-6596/2626/1/012044},\nurl = {https://dx.doi.org/10.1088/1742-6596/2626/1/012044},\nyear = {2023},\nmonth = {oct},\npublisher = {IOP Publishing},\nvolume = {2626},\nnumber = {1},\npages = {012044},\nauthor = {B Moverley Smith and J Ongley and A Angeloudis and P R Thies},\ntitle = {Mitigation of assembly constraints for floating offshore wind turbines using discrete event simulation},\njournal = {Journal of Physics: Conference Series},\nabstract = {There is a large and increasing pipeline of floating offshore wind projects with total global floating offshore wind capacity projected to grow year on year by, on average, between 59 and 104 % in the 2020s. This will lead to competition for infrastructure resources, in particular, port facilities for the construction and marshalling of the floating foundations and turbines. It is likely that multiple ports will need to be combined to provide the necessary fabrication capacity for a floating offshore wind farm of commercial scale. To enable an efficient and coordinated utilisation of multiple fabrication ports, it is crucial to understand the likely duration of different assembly and construction activities at different locations. However, at present this task is difficult to perform using top-down estimation models, as commercial-scale floating offshore wind farms comprising many tens of units have not been built to date. In this work we present a methodology, based on discrete event simulation (DES) and time series analysis, to produce an explicit simulation-based estimate of assembly activity durations, which are sensitive to setting specific factors. Three example case studies are outlined to demonstrate the ability to capture the variation in activity duration due to resource availability, and the season and location of activity. The methodology will be of use to project planners as it can be used at an early stage in the project life-cycle to appraise and adopt different construction strategies.}\n}\n\n
\n
\n\n\n
\n There is a large and increasing pipeline of floating offshore wind projects with total global floating offshore wind capacity projected to grow year on year by, on average, between 59 and 104 % in the 2020s. This will lead to competition for infrastructure resources, in particular, port facilities for the construction and marshalling of the floating foundations and turbines. It is likely that multiple ports will need to be combined to provide the necessary fabrication capacity for a floating offshore wind farm of commercial scale. To enable an efficient and coordinated utilisation of multiple fabrication ports, it is crucial to understand the likely duration of different assembly and construction activities at different locations. However, at present this task is difficult to perform using top-down estimation models, as commercial-scale floating offshore wind farms comprising many tens of units have not been built to date. In this work we present a methodology, based on discrete event simulation (DES) and time series analysis, to produce an explicit simulation-based estimate of assembly activity durations, which are sensitive to setting specific factors. Three example case studies are outlined to demonstrate the ability to capture the variation in activity duration due to resource availability, and the season and location of activity. The methodology will be of use to project planners as it can be used at an early stage in the project life-cycle to appraise and adopt different construction strategies.\n
\n\n\n
\n\n\n\n\n\n
\n
\n\n
\n
\n  \n 2022\n \n \n (13)\n \n \n
\n
\n \n \n
\n \n\n \n \n \n \n \n \n Medium-term variability of the UK's combined tidal energy resource for a net-zero carbon grid.\n \n \n \n \n\n\n \n Todeschini, G., Coles, D., Lewis, M., Popov, I., Angeloudis, A., Fairley, I., Johnson, F., Williams, A., Robins, P., & Masters, I.\n\n\n \n\n\n\n Energy, 238: 121990. 2022.\n \n\n\n\n
\n\n\n\n \n \n \"Medium-termPaper\n  \n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n  \n \n 1 download\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n\n\n\n
\n 
@article{TODESCHINI2022121990,\ntitle = {Medium-term variability of the UK's combined tidal energy resource for a net-zero carbon grid},\njournal = {Energy},\nvolume = {238},\npages = {121990},\nyear = {2022},\nissn = {0360-5442},\ndoi = {https://doi.org/10.1016/j.energy.2021.121990},\nurl = {https://www.sciencedirect.com/science/article/pii/S0360544221022386},\nauthor = {G. Todeschini and D. Coles and M. Lewis and I. Popov and A. Angeloudis and I. Fairley and F. Johnson and A.J. Williams and P. Robins and I. Masters},\nkeywords = {Tidal energy, Renewable energy sources, Grid integration, Energy storage},\nabstract = {The small area of the United Kingdom relative to weather systems makes renewable energy sources variable on short time scales. Short term variability is therefore a growing concern with increasing amounts of renewable energy integration. In this work, we address how tidal energy can contribute to reducing medium-term variability in the future UK energy mix. Two tidal integration scenarios are defined for 2050: for each scenario, a 5-min interval generation profile is calculated using an oceanographic model of UK tides, and the medium-term variability is assessed. Here we show that tidal power shows a lower level of variability compared to other resources. During spring tides, a national network of tidal power stations can produce continuous, although variable, electricity. It is then shown that tidal energy and storage can provide year-round continuous and constant power output, i.e. baseload generation. Therefore, we conclude that tidal energy can provide positive contributions and complement other renewable energy sources.}\n}\n\n
\n
\n\n\n
\n The small area of the United Kingdom relative to weather systems makes renewable energy sources variable on short time scales. Short term variability is therefore a growing concern with increasing amounts of renewable energy integration. In this work, we address how tidal energy can contribute to reducing medium-term variability in the future UK energy mix. Two tidal integration scenarios are defined for 2050: for each scenario, a 5-min interval generation profile is calculated using an oceanographic model of UK tides, and the medium-term variability is assessed. Here we show that tidal power shows a lower level of variability compared to other resources. During spring tides, a national network of tidal power stations can produce continuous, although variable, electricity. It is then shown that tidal energy and storage can provide year-round continuous and constant power output, i.e. baseload generation. Therefore, we conclude that tidal energy can provide positive contributions and complement other renewable energy sources.\n
\n\n\n
\n\n\n
\n \n\n \n \n \n \n \n \n Interactions between tidal stream turbine arrays and their hydrodynamic impact around Zhoushan Island, China.\n \n \n \n \n\n\n \n \n\n\n \n\n\n\n Ocean Engineering, 246: 110431. 2022.\n \n\n\n\n
\n\n\n\n \n \n \"InteractionsPaper\n  \n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
\n 
\n
\n\n\n
\n  Tidal currents represent an attractive renewable energy source particularly because of their predictability. Prospective tidal stream development sites are often co-located in close proximity. Under such circumstances, in order to maximise the exploitation of the resource, multiple tidal stream turbine arrays working in tandem would be needed. In this paper, a continuous array optimisation approach based on the open source coastal ocean modelling framework Thetis is applied to derive optimal configurations for four turbine arrays around Zhoushan Islands, Zhejiang Province, China. Alternative optimisation scenarios are tested to investigate interactions between the turbine arrays and their hydrodynamic footprint. Results show that there are no obvious competition effects between these four arrays around Hulu and Taohua Island. However, significant interactions could arise among the three turbine arrays situated around Hulu Island, with a maximum decrease in average power of 42.2%. By optimising all turbine arrays simultaneously, the competition effects can be minimised and the cost of energy reduced as less turbines are required to deliver an equivalent energy output. As for the potential environmental impact, it is found that the turbine array around Taohua Island would affect a larger area than turbine arrays around Hulu Island.\n
\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  \n    Combining shallow-water and analytical wake models for tidal array micro-siting.\n  \n  \n  \n  \n\n\n  \n  Jordan, C., Dundovic, D., Fragkou, A. K., Deskos, G., Coles, D. S., Piggott, M. D.,  & Angeloudis, A.\n\n\n  \n\n\n\n  Journal of Ocean Engineering and Marine Energy.  2022.\n  \n\n\n\n
\n\n\n\n  \n  \n    \"CombiningPaper\n   \n  \n\n  \n  \n    doi\n   \n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n   \n  \n    abstract \n  \n\n  \n   \n  \n    1 download\n  \n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@article{Jordan2022,\n\tabstract = {For tidal-stream energy to become a competitive renewable energy source, clustering multiple turbines into arrays is paramount. Array optimisation is thus critical for achieving maximum power performance and reducing cost of energy. However, ascertaining an optimal array layout is a complex problem, subject to specific site hydrodynamics and multiple inter-disciplinary constraints. In this work, we present a novel optimisation approach that combines an analytical-based wake model, FLORIS, with an ocean model, Thetis. The approach is demonstrated through applications of increasing complexity. By utilising the method of analytical wake superposition, the addition or alteration of turbine position does not require re-calculation of the entire flow field, thus allowing the use of simple heuristic techniques to perform optimisation at a fraction of the computational cost of more sophisticated methods. Using a custom condition-based placement algorithm, this methodology is applied to the Pentland Firth for arrays with turbines of {\\$}{\\$}3.05{$\\backslash$},{$\\backslash$}hbox {\\{}m{\\}}/{$\\backslash$}hbox {\\{}s{\\}}{\\$}{\\$}rated speed, demonstrating practical implications whilst considering the temporal variability of the tide. For a 24-turbine array case, micro-siting using this technique delivered an array 15.8{\\%} more productive on average than a staggered layout, despite flow speeds regularly exceeding the rated value. Performance was evaluated through assessment of the optimised layout within the ocean model that treats turbines through a discrete turbine representation. Used iteratively, this methodology could deliver improved array configurations in a manner that accounts for local hydrodynamic effects.},\n\tauthor = {Jordan, Connor and Dundovic, Davor and Fragkou, Anastasia K. and Deskos, Georgios and Coles, Daniel S. and Piggott, Matthew D. and Angeloudis, Athanasios},\n\tda = {2022/03/09},\n\tdate-added = {2022-03-23 16:22:31 +0000},\n\tdate-modified = {2022-03-23 16:22:31 +0000},\n\tdoi = {10.1007/s40722-022-00225-2},\n\tid = {Jordan2022},\n\tisbn = {2198-6452},\n\tjournal = {Journal of Ocean Engineering and Marine Energy},\n\ttitle = {Combining shallow-water and analytical wake models for tidal array micro-siting},\n\tty = {JOUR},\n\turl = {https://doi.org/10.1007/s40722-022-00225-2},\n\tyear = {2022},\n}\n\n
\n
\n\n\n
\n  For tidal-stream energy to become a competitive renewable energy source, clustering multiple turbines into arrays is paramount. Array optimisation is thus critical for achieving maximum power performance and reducing cost of energy. However, ascertaining an optimal array layout is a complex problem, subject to specific site hydrodynamics and multiple inter-disciplinary constraints. In this work, we present a novel optimisation approach that combines an analytical-based wake model, FLORIS, with an ocean model, Thetis. The approach is demonstrated through applications of increasing complexity. By utilising the method of analytical wake superposition, the addition or alteration of turbine position does not require re-calculation of the entire flow field, thus allowing the use of simple heuristic techniques to perform optimisation at a fraction of the computational cost of more sophisticated methods. Using a custom condition-based placement algorithm, this methodology is applied to the Pentland Firth for arrays with turbines of $}{$3.05$\\$,$\\$hbox \\m\\/$\\$hbox \\s\\$}{$rated speed, demonstrating practical implications whilst considering the temporal variability of the tide. For a 24-turbine array case, micro-siting using this technique delivered an array 15.8% more productive on average than a staggered layout, despite flow speeds regularly exceeding the rated value. Performance was evaluated through assessment of the optimised layout within the ocean model that treats turbines through a discrete turbine representation. Used iteratively, this methodology could deliver improved array configurations in a manner that accounts for local hydrodynamic effects.\n
\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  \n    Sedimentological data-driven bottom friction parameter estimation in modelling Bristol Channel tidal dynamics.\n  \n  \n  \n  \n\n\n  \n  Warder, S. C., Angeloudis, A.,  & Piggott, M. D.\n\n\n  \n\n\n\n  Ocean Dynamics.  2022.\n  \n\n\n\n
\n\n\n\n  \n  \n    \"SedimentologicalPaper\n   \n  \n\n  \n  \n    doi\n   \n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n   \n  \n    abstract \n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@article{Warder2022,\n\tabstract = {Accurately representing the bottom friction effect is a significant challenge in numerical tidal models. Bottom friction effects are commonly defined via parameter estimation techniques. However, the bottom friction coefficient (BFC) can be related to the roughness of the sea bed. Therefore, sedimentological data can be beneficial in estimating BFCs. Taking the Bristol Channel and Severn Estuary as a case study, we perform a number of BFC parameter estimation experiments, utilising sedimentological data in a variety of ways. Model performance is explored through the results of each parameter estimation experiment, including applications to tidal range and tidal stream resource assessment. We find that theoretically derived sediment-based BFCs are in most cases detrimental to model performance. However, good performance is obtained by retaining the spatial information provided by the sedimentological data in the formulation of the parameter estimation experiment; the spatially varying BFC can be represented as a piecewise-constant field following the spatial distribution of the observed sediment types. By solving the resulting low-dimensional parameter estimation problem, we obtain good model performance as measured against tide gauge data. This approach appears well suited to modelling tidal range energy resource, which is of particular interest in the case study region. However, the applicability of this approach for tidal stream resource assessment is limited, since modelled tidal currents exhibit a strong localised response to the BFC; the use of piecewise-constant (and therefore discontinuous) BFCs is found to be detrimental to model performance for tidal currents.},\n\tauthor = {Warder, Simon C. and Angeloudis, Athanasios and Piggott, Matthew D.},\n\tdate = {2022/04/27},\n\tdate-added = {2022-04-28 09:01:40 +0100},\n\tdate-modified = {2022-04-28 09:01:40 +0100},\n\tdoi = {10.1007/s10236-022-01507-x},\n\tid = {Warder2022},\n\tisbn = {1616-7228},\n\tjournal = {Ocean Dynamics},\n\ttitle = {Sedimentological data-driven bottom friction parameter estimation in modelling Bristol Channel tidal dynamics},\n\turl = {https://doi.org/10.1007/s10236-022-01507-x},\n\tyear = {2022}}\n\n\n
\n
\n\n\n
\n  Accurately representing the bottom friction effect is a significant challenge in numerical tidal models. Bottom friction effects are commonly defined via parameter estimation techniques. However, the bottom friction coefficient (BFC) can be related to the roughness of the sea bed. Therefore, sedimentological data can be beneficial in estimating BFCs. Taking the Bristol Channel and Severn Estuary as a case study, we perform a number of BFC parameter estimation experiments, utilising sedimentological data in a variety of ways. Model performance is explored through the results of each parameter estimation experiment, including applications to tidal range and tidal stream resource assessment. We find that theoretically derived sediment-based BFCs are in most cases detrimental to model performance. However, good performance is obtained by retaining the spatial information provided by the sedimentological data in the formulation of the parameter estimation experiment; the spatially varying BFC can be represented as a piecewise-constant field following the spatial distribution of the observed sediment types. By solving the resulting low-dimensional parameter estimation problem, we obtain good model performance as measured against tide gauge data. This approach appears well suited to modelling tidal range energy resource, which is of particular interest in the case study region. However, the applicability of this approach for tidal stream resource assessment is limited, since modelled tidal currents exhibit a strong localised response to the BFC; the use of piecewise-constant (and therefore discontinuous) BFCs is found to be detrimental to model performance for tidal currents.\n
\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  Variability in Laptev Sea freshwater transport from satellite SSS.\n  \n  \n  \n\n\n  \n  Hudson, P., Martin, A., Angeloudis, A., Josey, S.,  & Marzocchi, A.\n\n\n  \n\n\n\n  In Living Planet Symposium, pages 1–3. Bonn,  2022.\n  \n\n\n\n
\n\n\n\n  \n\n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@incollection{Hudson2022,\nauthor = {Hudson, P. and Martin, A. and Angeloudis, A. and Josey, S. and Marzocchi, A. },\nbooktitle = {Living Planet Symposium},\naddress = {Bonn},\ntitle = {{Variability in Laptev Sea freshwater transport from satellite SSS}},\nyear = {2022},\npages = {1--3}\n}\n\n\n
\n
\n\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  \n    Temporal complementarity of marine renewables with wind and solar generation: Implications for GB system benefits.\n  \n  \n  \n  \n\n\n  \n  Pennock, S., Coles, D., Angeloudis, A., Bhattacharya, S.,  & Jeffrey, H.\n\n\n  \n\n\n\n  Applied Energy, 319: 119276.  2022.\n  \n\n\n\n
\n\n\n\n  \n  \n    \"TemporalPaper\n   \n  \n\n  \n  \n    doi\n   \n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n   \n  \n    abstract \n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n\n\n\n
\n  
@article{PENNOCK2022119276,\n\tabstract = {Wave and tidal energy have the potential to provide benefits to power systems with high proportions of stochastic renewable generation. This is particularly applicable in combination with wind and solar photovoltaics, as the offsetting of these renewable resources results in more reliable renewable generation. This study utilises ten metrics to quantify the temporal complementarity and supply-demand balancing requirements of the energy mix in Great Britain, to investigate the potential magnitude of these system benefits. Wave and tidal generation profiles are created using historical resource data and hydrodynamic models. The results show that the inclusion of wave and tidal generation creates a renewable energy mix which is more available under multiple conditions: throughout a year of operation; at times of peak demand; for multiple consecutive hourly time periods; and at times when wind and solar generation are not available. Three regional case studies also show that the inclusion of marine energy allows for improved regional supply-demand matching, reducing instances of energy shortage and excess and potentially relieving transmission congestion at particularly constrained locations within GB. Finally, the implications of these findings are discussed in terms of GB wholesale market operation, system balancing and system security.},\n\tauthor = {Shona Pennock and Daniel Coles and Angeloudis, A. and Saptarshi Bhattacharya and Henry Jeffrey},\n\tdoi = {https://doi.org/10.1016/j.apenergy.2022.119276},\n\tissn = {0306-2619},\n\tjournal = {Applied Energy},\n\tkeywords = {Marine energy, Temporal characterisation, System integration, Wave energy, Tidal stream energy},\n\tpages = {119276},\n\ttitle = {Temporal complementarity of marine renewables with wind and solar generation: Implications for GB system benefits},\n\turl = {https://www.sciencedirect.com/science/article/pii/S030626192200633X},\n\tvolume = {319},\n\tyear = {2022},\n\tbdsk-url-1 = {https://www.sciencedirect.com/science/article/pii/S030626192200633X},\n\tbdsk-url-2 = {https://doi.org/10.1016/j.apenergy.2022.119276}}\n\n
\n
\n\n\n
\n  Wave and tidal energy have the potential to provide benefits to power systems with high proportions of stochastic renewable generation. This is particularly applicable in combination with wind and solar photovoltaics, as the offsetting of these renewable resources results in more reliable renewable generation. This study utilises ten metrics to quantify the temporal complementarity and supply-demand balancing requirements of the energy mix in Great Britain, to investigate the potential magnitude of these system benefits. Wave and tidal generation profiles are created using historical resource data and hydrodynamic models. The results show that the inclusion of wave and tidal generation creates a renewable energy mix which is more available under multiple conditions: throughout a year of operation; at times of peak demand; for multiple consecutive hourly time periods; and at times when wind and solar generation are not available. Three regional case studies also show that the inclusion of marine energy allows for improved regional supply-demand matching, reducing instances of energy shortage and excess and potentially relieving transmission congestion at particularly constrained locations within GB. Finally, the implications of these findings are discussed in terms of GB wholesale market operation, system balancing and system security.\n
\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  Tidal Array Spatial Optimisation combining Shallow Water Equations and wake superposition modelling.\n  \n  \n  \n\n\n  \n  Connor, J., Davor, D., Anastasia K., F., Georgios, D., Daniel, C., Matthew D., P.,  & Athanasios, A.\n\n\n  \n\n\n\n  In 39th IAHR World Congress , pages 1–8, Granada, Spain,  2022. \n  \n\n\n\n
\n\n\n\n  \n\n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@inproceedings{Jordan_IAHR2022,\nauthor = {Connor, Jordan and Davor, Dundovic and Anastasia K., Fragkou and Georgios, Deskos and Daniel, Coles and Matthew D., Piggott and Athanasios, Angeloudis},\nbooktitle = {39th IAHR World Congress },\naddress = {Granada, Spain},\ntitle = {{Tidal Array Spatial Optimisation combining Shallow Water Equations and wake superposition modelling}},\nyear = {2022},\npages = {1--8}\n}\n\n
\n
\n\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  Depth-Induced Breaking and Wave Set-up Representation by Coupling Spectral Wave and Coastal Hydrodynamics Models .\n  \n  \n  \n\n\n  \n  Anastasia K., F., Athanasios, A., Vengatesan, V.,  & Christopher, O.\n\n\n  \n\n\n\n  In 39th IAHR World Congress , pages 1–8, Granada, Spain,  2022. \n  \n\n\n\n
\n\n\n\n  \n\n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@inproceedings{Fragkou_IAHR2022,\nauthor = {Anastasia K., Fragkou and Athanasios, Angeloudis and Vengatesan, Venugopal and Christopher, Old},\nbooktitle = {39th IAHR World Congress },\naddress = {Granada, Spain},\ntitle = {{Depth-Induced Breaking and Wave Set-up Representation by Coupling Spectral Wave and Coastal Hydrodynamics Models\n}},\nyear = {2022},\npages = {1--8}\n}\n\n\n
\n
\n\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  Depth-Induced Breaking and Wave Set-up Representation by Coupling Spectral Wave and Coastal Hydrodynamics Models .\n  \n  \n  \n\n\n  \n  Anastasia K., F., Athanasios, A., Vengatesan, V.,  & Christopher, O.\n\n\n  \n\n\n\n  In 39th IAHR World Congress , pages 1–8, Granada, Spain,  2022. \n  \n\n\n\n
\n\n\n\n  \n\n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@inproceedings{Fragkou_IAHR2022,\nauthor = {Anastasia K., Fragkou and Athanasios, Angeloudis and Vengatesan, Venugopal and Christopher, Old},\nbooktitle = {39th IAHR World Congress },\naddress = {Granada, Spain},\ntitle = {{Depth-Induced Breaking and Wave Set-up Representation by Coupling Spectral Wave and Coastal Hydrodynamics Models\n}},\nyear = {2022},\npages = {1--8}\n}\n\n
\n
\n\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  Submerged bar in a 2-D representation by coupling spectral wave and coastal hydrodynamics models.\n  \n  \n  \n\n\n  \n  Anastasia K., F., Vengatesan, V., Christopher, O.,  & Athanasios, A.\n\n\n  \n\n\n\n  In 6th IAHR Europe Conference, pages 1–2. Athens,  2022.\n  \n\n\n\n
\n\n\n\n  \n\n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@incollection{Fragkou_IAHR_EUR2022,\nauthor = {Anastasia K., Fragkou  and Vengatesan, Venugopal and Christopher, Old and Athanasios, Angeloudis},\nbooktitle = {6th IAHR Europe Conference},\naddress = {Athens},\ntitle = {{Submerged bar in a 2-D representation by coupling spectral wave and coastal hydrodynamics models}},\nyear = {2022},\npages = {1--2}\n}\n\n
\n
\n\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  Improving tidal turbine array performance through the optimisation of layout and yaw angles.\n  \n  \n  \n\n\n  \n  Zhang, C., Kramer, S. C, Angeloudis, A., Zhang, J., Lin, X.,  & Piggott, M. D\n\n\n  \n\n\n\n  International Marine Energy Journal, 5(3): 273–280.  2022.\n  \n\n\n\n
\n\n\n\n  \n\n  \n  \n    doi\n   \n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@article{zhang2022improving,\n  title={Improving tidal turbine array performance through the optimisation of layout and yaw angles},\n  author={Zhang, Can and Kramer, Stephan C and Angeloudis, Athanasios and Zhang, Jisheng and Lin, Xiangfeng and Piggott, Matthew D},\n  journal={International Marine Energy Journal},\n  volume={5},\n  number={3},\n  pages={273--280},\n  year={2022},\n    doi={https://doi.org/10.36688/imej.5.273-280 }\n}\n\n
\n
\n\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  Selecting representative tide conditions for tidal range and energy assessments.\n  \n  \n  \n\n\n  \n  Pappas, K., Angeloudis, A., Mackie, L.,  & Zilakos, I.\n\n\n  \n\n\n\n  In Trends in Renewable Energies Offshore, RENEW 2022 , pages 59–68, Lisbon, Portugal,  2022. CRC Press\n  \n\n\n\n
\n\n\n\n  \n\n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@inproceedings{pappas2022selecting,\n  title={Selecting representative tide conditions for tidal range and energy assessments},\n  author={Pappas, Konstantinos and Angeloudis, Athanasios and Mackie, Lucas and Zilakos, Ilias},\n  booktitle = {Trends in Renewable Energies Offshore, RENEW 2022 },\n  address = {Lisbon, Portugal},\n  pages={59--68},\n  year={2022},\n  publisher={CRC Press}\n}\n\n
\n
\n\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  Investigating the effect of the sediment transport on tidal turbine array performance.\n  \n  \n  \n\n\n  \n  Zhang, C, Angeloudis, A, Kramer, S., Zhang, J.,  & Piggott, M.\n\n\n  \n\n\n\n  In Trends in Renewable Energies Offshore, RENEW 2022 , pages 189–196, Lisbon, Portugal,  2022. CRC Press\n  \n\n\n\n
\n\n\n\n  \n\n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@inproceedings{zhang2022investigating,\n  title={Investigating the effect of the sediment transport on tidal turbine array performance},\n  author={Zhang, C and Angeloudis, A and Kramer, SC and Zhang, JS and Piggott, MD},\n  booktitle = {Trends in Renewable Energies Offshore, RENEW 2022 },\n  address = {Lisbon, Portugal},\n  pages={189--196},\n  year={2022},\n  publisher={CRC Press}\n}\n\n
\n
\n\n\n\n
\n\n\n\n\n\n    
\n  
\n\n  
\n    
\n       \n      2021\n      \n        \n        (16)\n        \n      \n    
\n    
\n      \n  \n  
\n  \n\n  \n  \n  \n  \n  \n  \n    Hydro-morphodynamics 2D modelling using a discontinuous Galerkin discretisation.\n  \n  \n  \n  \n\n\n  \n  Clare, M. C., Percival, J. R., Angeloudis, A., Cotter, C. J.,  & Piggott, M. D.\n\n\n  \n\n\n\n  Computers & Geosciences, 146: 104658.  2021.\n  \n\n\n\n
\n\n\n\n  \n  \n    \"Hydro-morphodynamicsPaper\n   \n  \n\n  \n  \n    doi\n   \n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n   \n  \n    abstract \n  \n\n  \n   \n  \n    4 downloads\n  \n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n\n\n\n
\n  
@article{Clare2021,\ntitle = "Hydro-morphodynamics 2D modelling using a discontinuous Galerkin discretisation",\njournal = "Computers \\& Geosciences",\nvolume = "146",\npages = "104658",\nyear = "2021",\nissn = "0098-3004",\ndoi = "https://doi.org/10.1016/j.cageo.2020.104658",\nurl = "http://www.sciencedirect.com/science/article/pii/S0098300420306324",\nauthor = "Mariana C.A. Clare and James R. Percival and Angeloudis, A. and Colin J. Cotter and Matthew D. Piggott",\nkeywords = "Suspended and bedload transport, Discontinuous Galerkin, Finite element methods, Computational methods, Gravity and secondary current effects, Geomorphology",\nabstract = "The development of morphodynamic models to simulate sediment transport accurately is a challenging process that is becoming ever more important because of our increasing exploitation of the coastal zone, as well as sea-level rise and the potential increase in strength and frequency of storms due to a changing climate. Morphodynamic models are highly complex given the non-linear and coupled nature of the sediment transport problem. Here we implement a new depth-averaged coupled hydrodynamic and sediment transport model within the coastal ocean model Thetis, built using the code generating framework Firedrake which facilitates code flexibility and optimisation benefits. To the best of our knowledge, this represents the first full morphodynamic model including both bedload and suspended sediment transport which uses a discontinuous Galerkin based finite element discretisation. We implement new functionalities within Thetis extending its existing capacity to model scalar transport to modelling suspended sediment transport, incorporating within Thetis options to model bedload transport and bedlevel changes. We apply our model to problems with non-cohesive sediment and account for effects of gravity and helical flow by adding slope gradient terms and parametrising secondary currents. For validation purposes and in demonstrating model capability, we present results from test cases of a migrating trench and a meandering channel comparing against experimental data and the widely-used model Telemac-Mascaret."\n}\n\n
\n
\n\n\n
\n  The development of morphodynamic models to simulate sediment transport accurately is a challenging process that is becoming ever more important because of our increasing exploitation of the coastal zone, as well as sea-level rise and the potential increase in strength and frequency of storms due to a changing climate. Morphodynamic models are highly complex given the non-linear and coupled nature of the sediment transport problem. Here we implement a new depth-averaged coupled hydrodynamic and sediment transport model within the coastal ocean model Thetis, built using the code generating framework Firedrake which facilitates code flexibility and optimisation benefits. To the best of our knowledge, this represents the first full morphodynamic model including both bedload and suspended sediment transport which uses a discontinuous Galerkin based finite element discretisation. We implement new functionalities within Thetis extending its existing capacity to model scalar transport to modelling suspended sediment transport, incorporating within Thetis options to model bedload transport and bedlevel changes. We apply our model to problems with non-cohesive sediment and account for effects of gravity and helical flow by adding slope gradient terms and parametrising secondary currents. For validation purposes and in demonstrating model capability, we present results from test cases of a migrating trench and a meandering channel comparing against experimental data and the widely-used model Telemac-Mascaret.\n
\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  \n    Modelling an energetic tidal strait: investigating implications of common numerical configuration choices.\n  \n  \n  \n  \n\n\n  \n  Mackie, L., Evans, P. S., Harrold, M. J., O`Doherty, T., Piggott, M. D.,  & Angeloudis, A.\n\n\n  \n\n\n\n  Applied Ocean Research, 108: 102494.  2021.\n  \n\n\n\n
\n\n\n\n  \n  \n    \"ModellingPaper\n   \n  \n\n  \n  \n    doi\n   \n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n   \n  \n    abstract \n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n\n\n\n
\n  
@article{Mackie2021,\ntitle = "Modelling an energetic tidal strait: investigating implications of common numerical configuration choices",\njournal = "Applied Ocean Research",\nvolume = "108",\npages = "102494",\nyear = "2021",\nissn = "0141-1187",\ndoi = "https://doi.org/10.1016/j.apor.2020.102494",\nurl = "http://www.sciencedirect.com/science/article/pii/S0141118720310531",\nauthor = "Lucas Mackie and Paul S. Evans and Magnus J. Harrold and Tim O`Doherty and Matthew D. Piggott and Athanasios Angeloudis",\nkeywords = "Coastal hydrodynamics, Model calibration, Manning coefficient, Unstructured mesh, Field measurements, Wake modelling, Marine energy,",\nabstract = "Representation of the marine environment is key for reliable coastal hydrodynamic models. This study investigates the implications of common depth-averaged model configuration choices in sufficiently characterising seabed geometry and roughness. In particular, applications requiring a high level of accuracy and/or exhibiting complex flow conditions may call for greater detail in marine environment representation than typically adopted in coastal models. Ramsey Sound, a macrotidal strait in Pembrokeshire, Wales, UK is considered as a case study. The site contains various steeply inclined bathymetric features, including a submerged pinnacle named Horse Rock and a rocky reef called “The Bitches”. The available energy in Ramsey Sound’s tidal currents has attracted attention from tidal energy developers. There is interest in accurately modelling the energetic hydrodynamics surrounding its pronounced bathymetry. The coastal flow solver Thetis is applied to simulate the flow conditions in Ramsey Sound. It is shown that notable prominent bathymetric features in the strait influence localised and, most importantly, regional hydrodynamic characteristics. “The Bitches” consistently accelerate flow in the strait while Horse Rock induces a notable wake structure and flow reversals. The model is calibrated against bed- and vessel-mounted Acoustic Doppler Current Profiler (ADCP) observations, by altering seabed roughness parameterisations. A spatially variable and locally scaled Manning coefficient based on diverse seabed classification observations is found to improve model performance in comparison to uniformly applied constants, the latter a more common approach. The local impact of altering the Manning coefficient configuration is found to be greatest during spring flood periods of high velocity currents. Meanwhile, the effect of coarsening the computational mesh around bathymetric features towards values more typically applied in coastal models is investigated. Results indicate severe misrepresentation of seabed geometry and subsequent wake hydrodynamics unless refined to a mesh element size that adequately represents Horse Rock and “The Bitches”."\n}\n\n
\n
\n\n\n
\n  Representation of the marine environment is key for reliable coastal hydrodynamic models. This study investigates the implications of common depth-averaged model configuration choices in sufficiently characterising seabed geometry and roughness. In particular, applications requiring a high level of accuracy and/or exhibiting complex flow conditions may call for greater detail in marine environment representation than typically adopted in coastal models. Ramsey Sound, a macrotidal strait in Pembrokeshire, Wales, UK is considered as a case study. The site contains various steeply inclined bathymetric features, including a submerged pinnacle named Horse Rock and a rocky reef called “The Bitches”. The available energy in Ramsey Sound’s tidal currents has attracted attention from tidal energy developers. There is interest in accurately modelling the energetic hydrodynamics surrounding its pronounced bathymetry. The coastal flow solver Thetis is applied to simulate the flow conditions in Ramsey Sound. It is shown that notable prominent bathymetric features in the strait influence localised and, most importantly, regional hydrodynamic characteristics. “The Bitches” consistently accelerate flow in the strait while Horse Rock induces a notable wake structure and flow reversals. The model is calibrated against bed- and vessel-mounted Acoustic Doppler Current Profiler (ADCP) observations, by altering seabed roughness parameterisations. A spatially variable and locally scaled Manning coefficient based on diverse seabed classification observations is found to improve model performance in comparison to uniformly applied constants, the latter a more common approach. The local impact of altering the Manning coefficient configuration is found to be greatest during spring flood periods of high velocity currents. Meanwhile, the effect of coarsening the computational mesh around bathymetric features towards values more typically applied in coastal models is investigated. Results indicate severe misrepresentation of seabed geometry and subsequent wake hydrodynamics unless refined to a mesh element size that adequately represents Horse Rock and “The Bitches”.\n
\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  \n    Evaluating the eutrophication risk of an artificial tidal lagoon.\n  \n  \n  \n  \n\n\n  \n  Kadiri, M., Zhang, H., Angeloudis, A.,  & Piggott, M. D.\n\n\n  \n\n\n\n  Ocean & Coastal Management, 203: 105490.  2021.\n  \n\n\n\n
\n\n\n\n  \n  \n    \"EvaluatingPaper\n   \n  \n\n  \n  \n    doi\n   \n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n   \n  \n    abstract \n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n\n\n\n
\n  
@article{KADIRI2021105490,\ntitle = "Evaluating the eutrophication risk of an artificial tidal lagoon",\njournal = "Ocean \\& Coastal Management",\nvolume = "203",\npages = "105490",\nyear = "2021",\nissn = "0964-5691",\ndoi = "https://doi.org/10.1016/j.ocecoaman.2020.105490",\nurl = "http://www.sciencedirect.com/science/article/pii/S0964569120303975",\nauthor = "Margaret Kadiri and Holly Zhang and Athanasios Angeloudis and Matthew D. Piggott",\nkeywords = "Tidal power, Marine renewable energy, Environmental impact, Eutrophication, Trophic status",\nabstract = "With increased nutrient inputs to estuaries in recent decades exacerbating their susceptibility to eutrophication, assessment of the response of individual estuaries to nutrient enrichment is attracting considerable attention. Nonetheless, the impact of tidal energy extraction on estuarine nutrient dynamics and the risk of eutrophication has been largely overlooked despite the detrimental consequences of eutrophication on ecosystem functioning. It is understood that tidal energy schemes such as the tidal lagoon previously proposed in Swansea Bay would alter tidal flow characteristics, potentially having knock-on impacts on physical estuarine characteristics and ecological processes in the impounded area. This study examined the existing physical estuarine characteristics in Swansea Bay and evaluated the risk of eutrophication following tidal power plant operation under ebb-only and two-way strategies using a simple risk assessment model. Two surveys were conducted to measure in-situ temperature, salinity, dissolved oxygen, chlorophyll-a, dissolved inorganic nitrogen and turbidity in the water column at 12 sampling stations selected to cover the location in the tidal energy scheme proposal. The water column was found to be nutrient enriched and essentially vertically homogenous with no strong evidence of stratification. High dissolved oxygen, low turbidity and high phytoplankton biomass indicated by the chlorophyll-a concentrations were observed. The bay did not show any signs of eutrophication as the phytoplankton biomass did not reach the level typical of harmful algal blooms and oxygen depletion was not observed indicating that eutrophication is not currently present in the bay. Based on numerical model predictions, the bay was found to exhibit a moderate response to nutrient enrichment with no risk of eutrophication and no net change in its status following the operation of the lagoon under both ebb-only and two-way operational modes. These findings suggest that the management strategies for protecting water quality in heavily modified estuaries such as Swansea Bay may not need to be altered following the operation of a tidal lagoon. But given the conditions for phytoplankton growth are likely to be more favourable under ebb-only operational mode compared to two-way operational mode, measures that control nutrient inputs to the impounded water column within the lagoon should be considered under the ebb-only operational mode as a prudent precautionary step."\n}\n\n
\n
\n\n\n
\n  With increased nutrient inputs to estuaries in recent decades exacerbating their susceptibility to eutrophication, assessment of the response of individual estuaries to nutrient enrichment is attracting considerable attention. Nonetheless, the impact of tidal energy extraction on estuarine nutrient dynamics and the risk of eutrophication has been largely overlooked despite the detrimental consequences of eutrophication on ecosystem functioning. It is understood that tidal energy schemes such as the tidal lagoon previously proposed in Swansea Bay would alter tidal flow characteristics, potentially having knock-on impacts on physical estuarine characteristics and ecological processes in the impounded area. This study examined the existing physical estuarine characteristics in Swansea Bay and evaluated the risk of eutrophication following tidal power plant operation under ebb-only and two-way strategies using a simple risk assessment model. Two surveys were conducted to measure in-situ temperature, salinity, dissolved oxygen, chlorophyll-a, dissolved inorganic nitrogen and turbidity in the water column at 12 sampling stations selected to cover the location in the tidal energy scheme proposal. The water column was found to be nutrient enriched and essentially vertically homogenous with no strong evidence of stratification. High dissolved oxygen, low turbidity and high phytoplankton biomass indicated by the chlorophyll-a concentrations were observed. The bay did not show any signs of eutrophication as the phytoplankton biomass did not reach the level typical of harmful algal blooms and oxygen depletion was not observed indicating that eutrophication is not currently present in the bay. Based on numerical model predictions, the bay was found to exhibit a moderate response to nutrient enrichment with no risk of eutrophication and no net change in its status following the operation of the lagoon under both ebb-only and two-way operational modes. These findings suggest that the management strategies for protecting water quality in heavily modified estuaries such as Swansea Bay may not need to be altered following the operation of a tidal lagoon. But given the conditions for phytoplankton growth are likely to be more favourable under ebb-only operational mode compared to two-way operational mode, measures that control nutrient inputs to the impounded water column within the lagoon should be considered under the ebb-only operational mode as a prudent precautionary step.\n
\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  \n    Tidal range resource of Australia.\n  \n  \n  \n  \n\n\n  \n  Neill, S. P., Hemmer, M., Robins, P. E., Griffiths, A., Furnish, A.,  & Angeloudis, A.\n\n\n  \n\n\n\n  Renewable Energy, 170: 683-692.  2021.\n  \n\n\n\n
\n\n\n\n  \n  \n    \"TidalPaper\n   \n  \n\n  \n  \n    doi\n   \n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n   \n  \n    abstract \n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n\n\n\n
\n  
@article{NEILL2021683,\ntitle = {Tidal range resource of Australia},\njournal = {Renewable Energy},\nvolume = {170},\npages = {683-692},\nyear = {2021},\nissn = {0960-1481},\ndoi = {https://doi.org/10.1016/j.renene.2021.02.035},\nurl = {https://www.sciencedirect.com/science/article/pii/S0960148121002020},\nauthor = {Simon P. Neill and Mark Hemmer and Peter E. Robins and Alana Griffiths and Aaron Furnish and Athanasios Angeloudis},\nkeywords = {Tidal range power, Tidal lagoon, Tidal barrage, 0D modelling, TPXO9, Australia},\nabstract = {In some shelf sea regions of the world, the tidal range is sufficient to convert the potential energy of the tides into electricity via tidal range power plants. As an island continent, Australia is one such region – a previous study estimated that Australia hosts up to 30% of the world’s resource. Here, we make use of a gridded tidal dataset (TPXO9) to characterize the tidal range resource of Australia. We examine the theoretical resource, and we also investigate the technical resource through 0D modelling with tidal range power plant operation. We find that the tidal range resource of Australia is 2004 TWh/yr, or about 22% of the global resource. This exceeds Australia’s total energy consumption for 2018/2019 (1721 TWh/yr), suggesting tidal range energy has the potential to make a substantial contribution to Australia’s electricity generation (265 TWh/yr in 2018/2019). Due to local resonance, the resource is concentrated in the sparsely populated Kimberley region of Western Australia. However, the tidal range resource in this region presents a renewable energy export opportunity, connecting to markets in southeast Asia. Combining the electricity from two complementary sites, with some degree of optimization tidal range schemes in this region can produce electricity for 45% of the year.}\n}\n\n
\n
\n\n\n
\n  In some shelf sea regions of the world, the tidal range is sufficient to convert the potential energy of the tides into electricity via tidal range power plants. As an island continent, Australia is one such region – a previous study estimated that Australia hosts up to 30% of the world’s resource. Here, we make use of a gridded tidal dataset (TPXO9) to characterize the tidal range resource of Australia. We examine the theoretical resource, and we also investigate the technical resource through 0D modelling with tidal range power plant operation. We find that the tidal range resource of Australia is 2004 TWh/yr, or about 22% of the global resource. This exceeds Australia’s total energy consumption for 2018/2019 (1721 TWh/yr), suggesting tidal range energy has the potential to make a substantial contribution to Australia’s electricity generation (265 TWh/yr in 2018/2019). Due to local resonance, the resource is concentrated in the sparsely populated Kimberley region of Western Australia. However, the tidal range resource in this region presents a renewable energy export opportunity, connecting to markets in southeast Asia. Combining the electricity from two complementary sites, with some degree of optimization tidal range schemes in this region can produce electricity for 45% of the year.\n
\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  Calibrating depth-averaged hydrodynamic models in areas with variable roughness and complex bathymetry.\n  \n  \n  \n\n\n  \n  Mackie, L., Evans, P., Angeloudis, A.,  & Piggott, M. D.\n\n\n  \n\n\n\n  In IAHR 2020 Conference , pages 1–2. Warsaw,  2021.\n  \n\n\n\n
\n\n\n\n  \n\n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@incollection{Mackie2021b,\nauthor = {Mackie, Lucas and Evans, Paul and Angeloudis, Athanasios and Piggott, M. D. },\nbooktitle = {IAHR 2020 Conference },\naddress = {Warsaw},\ntitle = {{Calibrating depth-averaged hydrodynamic models in areas with variable roughness and complex bathymetry}},\nyear = {2021},\npages = {1--2}\n}\n\n\n
\n
\n\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  Modelling the mixing and dispersion of brine surface discharge from desalination plants in coastal areas.\n  \n  \n  \n\n\n  \n  Fragkou, A., Deskos, G., Angeloudis, A.,  & Piggott, M. D.\n\n\n  \n\n\n\n  In IAHR 2020 Conference , pages 1–2. Warsaw,  2021.\n  \n\n\n\n
\n\n\n\n  \n\n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@incollection{Fragkou2021,\nauthor = {Fragkou, Anastasia and Deskos, Georgios and Angeloudis, Athanasios and Piggott, M. D. },\nbooktitle = {IAHR 2020 Conference },\naddress = {Warsaw},\ntitle = {{Modelling the mixing and dispersion of brine surface discharge from desalination plants in coastal areas}},\nyear = {2021},\npages = {1--2}\n}\n\n
\n
\n\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  \n    Tidal Stream vs. Wind Energy: The Value of Cyclic Power when Combined with Short-Term Storage in Hybrid Systems.\n  \n  \n  \n  \n\n\n  \n  Coles, D., Angeloudis, A., Goss, Z.,  & Miles, J.\n\n\n  \n\n\n\n  Energies, 14(4).  2021.\n  \n\n\n\n
\n\n\n\n  \n  \n    \"TidalPaper\n   \n  \n\n  \n  \n    doi\n   \n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n   \n  \n    abstract \n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@Article{en14041106,\nAUTHOR = {Coles, Daniel and Angeloudis, Athanasios and Goss, Zoe and Miles, Jon},\nTITLE = {Tidal Stream vs. Wind Energy: The Value of Cyclic Power when Combined with Short-Term Storage in Hybrid Systems},\nJOURNAL = {Energies},\nVOLUME = {14},\nYEAR = {2021},\nNUMBER = {4},\nARTICLE-NUMBER = {1106},\nURL = {https://www.mdpi.com/1996-1073/14/4/1106},\nISSN = {1996-1073},\nABSTRACT = {This study quantifies the technical, economic and environmental performance of hybrid systems that use either a tidal stream or wind turbine, alongside short-term battery storage and back-up oil generators. The systems are designed to partially displace oil generators on the island of Alderney, located in the British Channel Islands. The tidal stream turbine provides four power generation periods per day, every day. This relatively high frequency power cycling limits the use of the oil generators to 1.6 GWh/year. In contrast, low wind resource periods can last for days, forcing the wind hybrid system to rely on the back-up oil generators over long periods, totalling 2.4 GWh/year (50% higher). For this reason the tidal hybrid system spends £0.25 million/year less on fuel by displacing a greater volume of oil, or £6.4 million over a 25 year operating life, assuming a flat cost of oil over this period. The tidal and wind hybrid systems achieve an oil displacement of 78% and 67% respectively (the same as the reduction in carbon emissions). For the wind hybrid system to displace the same amount of oil as the tidal hybrid system, two additional wind turbines are needed. The ability of the battery to store excess turbine energy during high tidal/wind resource periods relies on opportunities to regularly discharge stored energy. The tidal hybrid system achieves this during slack tides. Periods of high wind resource outlast those of high tidal resource, causing the battery to often remain fully charged and excess wind power to be curtailed. Consequently the wind hybrid system curtails 1.9 GWh/year, whilst the tidal turbine curtails 0.2 GWh/year. The ability of the tidal stream turbines to reduce curtailment, fuel costs and carbon emissions may provide a case for implementing them in hybrid systems, if these benefits outweigh their relatively high capital and operating expenditure.},\nDOI = {10.3390/en14041106}\n}\n\n
\n
\n\n\n
\n  This study quantifies the technical, economic and environmental performance of hybrid systems that use either a tidal stream or wind turbine, alongside short-term battery storage and back-up oil generators. The systems are designed to partially displace oil generators on the island of Alderney, located in the British Channel Islands. The tidal stream turbine provides four power generation periods per day, every day. This relatively high frequency power cycling limits the use of the oil generators to 1.6 GWh/year. In contrast, low wind resource periods can last for days, forcing the wind hybrid system to rely on the back-up oil generators over long periods, totalling 2.4 GWh/year (50% higher). For this reason the tidal hybrid system spends £0.25 million/year less on fuel by displacing a greater volume of oil, or £6.4 million over a 25 year operating life, assuming a flat cost of oil over this period. The tidal and wind hybrid systems achieve an oil displacement of 78% and 67% respectively (the same as the reduction in carbon emissions). For the wind hybrid system to displace the same amount of oil as the tidal hybrid system, two additional wind turbines are needed. The ability of the battery to store excess turbine energy during high tidal/wind resource periods relies on opportunities to regularly discharge stored energy. The tidal hybrid system achieves this during slack tides. Periods of high wind resource outlast those of high tidal resource, causing the battery to often remain fully charged and excess wind power to be curtailed. Consequently the wind hybrid system curtails 1.9 GWh/year, whilst the tidal turbine curtails 0.2 GWh/year. The ability of the tidal stream turbines to reduce curtailment, fuel costs and carbon emissions may provide a case for implementing them in hybrid systems, if these benefits outweigh their relatively high capital and operating expenditure.\n
\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  \n    Advances in Environmental Hydraulics.\n  \n  \n  \n  \n\n\n  \n  Gualtieri, C., Shao, D.,  & Angeloudis, A.\n\n\n  \n\n\n\n  Water, 13(9).  2021.\n  \n\n\n\n
\n\n\n\n  \n  \n    \"AdvancesPaper\n   \n  \n\n  \n  \n    doi\n   \n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n   \n  \n    abstract \n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@Article{w13091192,\nAUTHOR = {Gualtieri, Carlo and Shao, Dongdong and Angeloudis, Athanasios},\nTITLE = {Advances in Environmental Hydraulics},\nJOURNAL = {Water},\nVOLUME = {13},\nYEAR = {2021},\nNUMBER = {9},\nARTICLE-NUMBER = {1192},\nURL = {https://www.mdpi.com/2073-4441/13/9/1192},\nISSN = {2073-4441},\nABSTRACT = {Environmental Hydraulics (EH) is the scientific study of environmental water flows and their related transport and transformation processes affecting the environmental quality of natural water systems, such as rivers, lakes, and aquifers, on our planet Earth [...]},\nDOI = {10.3390/w13091192}\n}\n\n
\n
\n\n\n
\n  Environmental Hydraulics (EH) is the scientific study of environmental water flows and their related transport and transformation processes affecting the environmental quality of natural water systems, such as rivers, lakes, and aquifers, on our planet Earth [...]\n
\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  Metric-based Mesh Adaptation for Tidal Farm Modelling.\n  \n  \n  \n\n\n  \n  Wallwork, J. G., Mackie, L., Kramer, S. C., Barral, N., Angeloudis, A.,  & Piggott, M. D.\n\n\n  \n\n\n\n  In MARINE 2021 Conference, pages 1–6, Edinburgh,  2021. \n  \n\n\n\n
\n\n\n\n  \n\n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@inproceedings{Wallwork2021,\nauthor = {Wallwork, J. G. and Mackie, L. and Kramer, S. C. and Barral, N. and Angeloudis, A. and Piggott, M. D. },\nbooktitle = {MARINE 2021 Conference},\naddress = {Edinburgh},\ntitle = {{Metric-based Mesh Adaptation for Tidal Farm Modelling}},\nyear = {2021},\npages = {1--6}\n}\n\n
\n
\n\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  Assessing the Hydrodynamic Impact of Idealised Tidal Power Lagoons at Sites Along the UK West Coast.\n  \n  \n  \n\n\n  \n  Mackie, L., Kramer, S. C., Angeloudis, A.,  & Piggott, M. D.\n\n\n  \n\n\n\n  In MARINE 2021 Conference, pages 1–2. Edinburgh,  2021.\n  \n\n\n\n
\n\n\n\n  \n\n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@incollection{Mackie2021c,\nauthor = {Mackie, L. and Kramer, S. C. and Angeloudis, A. and Piggott, M. D. },\nbooktitle = {MARINE 2021 Conference},\naddress = {Edinburgh},\ntitle = {{Assessing the Hydrodynamic Impact of Idealised Tidal Power Lagoons at Sites Along the UK West Coast}},\nyear = {2021},\npages = {1--2}\n}\n\n
\n
\n\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  \n    Satellite data for the offshore renewable energy sector: Synergies and innovation opportunities.\n  \n  \n  \n  \n\n\n  \n  Medina-Lopez, E., McMillan, D., Lazic, J., Hart, E., Zen, S., Angeloudis, A., Bannon, E., Browell, J., Dorling, S., Dorrell, R., Forster, R., Old, C., Payne, G., Porter, G., Rabaneda, A., Sellar, B., Tapoglou, E., Trifonova, N., Woodhouse, I.,  & Zampollo, A.\n\n\n  \n\n\n\n  Remote Sensing of Environment, 264: 112588.  2021.\n  \n\n\n\n
\n\n\n\n  \n  \n    \"SatellitePaper\n   \n  \n\n  \n  \n    doi\n   \n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n\n\n\n
\n  
@article{Medinalopez2021,\ntitle = {Satellite data for the offshore renewable energy sector: Synergies and innovation opportunities},\njournal = {Remote Sensing of Environment},\nvolume = {264},\npages = {112588},\nyear = {2021},\nissn = {0034-4257},\ndoi = {https://doi.org/10.1016/j.rse.2021.112588},\nurl = {https://www.sciencedirect.com/science/article/pii/S0034425721003084},\nauthor = {E. Medina-Lopez and D. McMillan and J. Lazic and E. Hart and S. Zen and A. Angeloudis and E. Bannon and J. Browell and S. Dorling and R.M. Dorrell and R. Forster and C. Old and G.S. Payne and G. Porter and A.S. Rabaneda and B. Sellar and E. Tapoglou and N. Trifonova and I.H. Woodhouse and A. Zampollo},\nkeywords = {Satellite data, Offshore renewable energy (ORE), Wind, Tidal, Wave, SAR, Sustainable ORE sector},\n}\n\n
\n
\n\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  Improving tidal turbine array performance through the optimisation of layout and yaw angles.\n  \n  \n  \n\n\n  \n  Can, Z., Kramer, S. C., Angeloudis, A., Zhang, J., Lin, X.,  & Piggott, M. D.\n\n\n  \n\n\n\n  In EWTEC2021 Conference , pages 1–7, Plymouth, UK,  2021. \n  \n\n\n\n
\n\n\n\n  \n\n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@inproceedings{Zhang_ewtec_2021,\nauthor = {Can, Zhang and Kramer, Stephan C. and  Angeloudis, Athanasios and Zhang, Jisheng and Lin, Xiangfeng and Piggott, M. D. },\nbooktitle = {EWTEC2021 Conference },\naddress = {Plymouth, UK},\ntitle = {{Improving tidal turbine array performance through the optimisation of layout and yaw angles}},\nyear = {2021},\npages = {1--7}\n}\n\n
\n
\n\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  \n    .\n  \n  \n  \n  \n\n\n  \n  Angeloudis, A., Mackie, L.,  & Piggott, M. D.\n\n\n  \n\n\n\n  Tidal Range Energy. Elsevier,  2021.\n  \n\n\n\n
\n\n\n\n  \n  \n    \"TidalPaper\n   \n  \n\n  \n  \n    doi\n   \n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n   \n  \n    abstract \n  \n\n  \n   \n  \n    1 download\n  \n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n\n\n\n
\n  
@inbook{ANGELOUDIS2021,\ntitle = {Tidal Range Energy},\nbooktitle = {Reference Module in Earth Systems and Environmental Sciences},\npublisher = {Elsevier},\nyear = {2021},\nisbn = {978-0-12-409548-9},\ndoi = {https://doi.org/10.1016/B978-0-12-819727-1.00093-5},\nurl = {https://www.sciencedirect.com/science/article/pii/B9780128197271000935},\nauthor = {Athanasios Angeloudis and Lucas Mackie and Matthew D. Piggott},\nkeywords = {Environmental impact, Potential energy, Resource assessment, Tidal barrage, Tidal lagoon, Tidal range energy},\nabstract = {Tides present enormous opportunities to serve as a source of marine renewable energy. This chapter outlines resource and exploitation considerations associated with the marine energy available in areas exhibiting a high tidal range. Initially, a brief introduction to this particular form of tidal power is presented, highlighting the characteristics of the resource and its global distribution. In turn, key elements of the technology required to harness this resource are described, demonstrating both progress made to-date and drivers towards the development of tidal range projects. An overview of existing tidal range power plants is provided as well as a summary of recent proposals for locations where the technology can be deployed. The focus then shifts towards technical constraints and feasibility challenges that must be considered, followed by the methods currently used to address these. Finally, further aspects of tidal range energy assessment are discussed by means of practical case studies.}\n}\n\n\n
\n
\n\n\n
\n  Tides present enormous opportunities to serve as a source of marine renewable energy. This chapter outlines resource and exploitation considerations associated with the marine energy available in areas exhibiting a high tidal range. Initially, a brief introduction to this particular form of tidal power is presented, highlighting the characteristics of the resource and its global distribution. In turn, key elements of the technology required to harness this resource are described, demonstrating both progress made to-date and drivers towards the development of tidal range projects. An overview of existing tidal range power plants is provided as well as a summary of recent proposals for locations where the technology can be deployed. The focus then shifts towards technical constraints and feasibility challenges that must be considered, followed by the methods currently used to address these. Finally, further aspects of tidal range energy assessment are discussed by means of practical case studies.\n
\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  \n    A review of the UK and British Channel Islands practical tidal stream energy resource.\n  \n  \n  \n  \n\n\n  \n  Coles, D., Angeloudis, A., Greaves, D., Hastie, G., Lewis, M., Mackie, L., McNaughton, J., Miles, J., Neill, S., Piggott, M., Risch, D., Scott, B., Sparling, C., Stallard, T., Thies, P., Walker, S., White, D., Willden, R.,  & Williamson, B.\n\n\n  \n\n\n\n  Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 477(2255): 20210469.  2021.\n  \n\n\n\n
\n\n\n\n  \n  \n    \"APaper\n   \n  \n\n  \n  \n    doi\n   \n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n   \n  \n    abstract \n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@article{doi:10.1098/rspa.2021.0469,\nauthor = {Coles, Daniel  and Angeloudis, Athanasios  and Greaves, Deborah  and Hastie, Gordon  and Lewis, Matthew  and Mackie, Lucas  and McNaughton, James  and Miles, Jon  and Neill, Simon  and Piggott, Matthew  and Risch, Denise  and Scott, Beth  and Sparling, Carol  and Stallard, Tim  and Thies, Philipp  and Walker, Stuart  and White, David  and Willden, Richard  and Williamson, Benjamin },\ntitle = {A review of the UK and British Channel Islands practical tidal stream energy resource},\njournal = {Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences},\nvolume = {477},\nnumber = {2255},\npages = {20210469},\nyear = {2021},\ndoi = {10.1098/rspa.2021.0469},\n\nURL = {https://royalsocietypublishing.org/doi/abs/10.1098/rspa.2021.0469},\neprint = {https://royalsocietypublishing.org/doi/pdf/10.1098/rspa.2021.0469}\n,\n    abstract = { This review provides a critical, multi-faceted assessment of the practical contribution tidal stream energy can make to the UK and British Channel Islands future energy mix. Evidence is presented that broadly supports the latest national-scale practical resource estimate, of 34 TWh/year, equivalent to 11\\% of the UK’s current annual electricity demand. The size of the practical resource depends in part on the economic competitiveness of projects. In the UK, 124 MW of prospective tidal stream capacity is currently eligible to bid for subsidy support (MeyGen 1C, 80 MW; PTEC, 30 MW; and Morlais, 14 MW). It is estimated that the installation of this 124 MW would serve to drive down the levelized cost of energy (LCoE), through learning, from its current level of around 240 £/MWh to below 150 £/MWh, based on a mid-range technology learning rate of 17\\%. Doing so would make tidal stream cost competitive with technologies such as combined cycle gas turbines, biomass and anaerobic digestion. Installing this 124 MW by 2031 would put tidal stream on a trajectory to install the estimated 11.5 GW needed to generate 34 TWh/year by 2050. The cyclic, predictable nature of tidal stream power shows potential to provide additional, whole-system cost benefits. These include reductions in balancing expenditure that are not considered in conventional LCoE estimates. The practical resource is also dependent on environmental constraints. To date, no collisions between animals and turbines have been detected, and only small changes in habitat have been measured. The impacts of large arrays on stratification and predator–prey interaction are projected to be an order of magnitude less than those from climate change, highlighting opportunities for risk retirement. Ongoing field measurements will be important as arrays scale up, given the uncertainty in some environmental and ecological impact models. Based on the findings presented in this review, we recommend that an updated national-scale practical resource study is undertaken that implements high-fidelity, site-specific modelling, with improved model validation from the wide range of field measurements that are now available from the major sites. Quantifying the sensitivity of the practical resource to constraints will be important to establish opportunities for constraint retirement. Quantification of whole-system benefits is necessary to fully understand the value of tidal stream in the energy system. }\n}\n\n
\n
\n\n\n
\n  This review provides a critical, multi-faceted assessment of the practical contribution tidal stream energy can make to the UK and British Channel Islands future energy mix. Evidence is presented that broadly supports the latest national-scale practical resource estimate, of 34 TWh/year, equivalent to 11% of the UK’s current annual electricity demand. The size of the practical resource depends in part on the economic competitiveness of projects. In the UK, 124 MW of prospective tidal stream capacity is currently eligible to bid for subsidy support (MeyGen 1C, 80 MW; PTEC, 30 MW; and Morlais, 14 MW). It is estimated that the installation of this 124 MW would serve to drive down the levelized cost of energy (LCoE), through learning, from its current level of around 240 £/MWh to below 150 £/MWh, based on a mid-range technology learning rate of 17%. Doing so would make tidal stream cost competitive with technologies such as combined cycle gas turbines, biomass and anaerobic digestion. Installing this 124 MW by 2031 would put tidal stream on a trajectory to install the estimated 11.5 GW needed to generate 34 TWh/year by 2050. The cyclic, predictable nature of tidal stream power shows potential to provide additional, whole-system cost benefits. These include reductions in balancing expenditure that are not considered in conventional LCoE estimates. The practical resource is also dependent on environmental constraints. To date, no collisions between animals and turbines have been detected, and only small changes in habitat have been measured. The impacts of large arrays on stratification and predator–prey interaction are projected to be an order of magnitude less than those from climate change, highlighting opportunities for risk retirement. Ongoing field measurements will be important as arrays scale up, given the uncertainty in some environmental and ecological impact models. Based on the findings presented in this review, we recommend that an updated national-scale practical resource study is undertaken that implements high-fidelity, site-specific modelling, with improved model validation from the wide range of field measurements that are now available from the major sites. Quantifying the sensitivity of the practical resource to constraints will be important to establish opportunities for constraint retirement. Quantification of whole-system benefits is necessary to fully understand the value of tidal stream in the energy system. \n
\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  \n    Assessing impacts of tidal power lagoons of a consistent design.\n  \n  \n  \n  \n\n\n  \n  Mackie, L., Kramer, S. C., Piggott, M. D.,  & Angeloudis, A.\n\n\n  \n\n\n\n  Ocean Engineering, 240: 109879.  2021.\n  \n\n\n\n
\n\n\n\n  \n  \n    \"AssessingPaper\n   \n  \n\n  \n  \n    doi\n   \n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n   \n  \n    abstract \n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n\n\n\n
\n  
@article{MACKIE2021109879,\ntitle = {Assessing impacts of tidal power lagoons of a consistent design},\njournal = {Ocean Engineering},\nvolume = {240},\npages = {109879},\nyear = {2021},\nissn = {0029-8018},\ndoi = {https://doi.org/10.1016/j.oceaneng.2021.109879},\nurl = {https://www.sciencedirect.com/science/article/pii/S0029801821012282},\nauthor = {Lucas Mackie and Stephan C. Kramer and Matthew D. Piggott and Athanasios Angeloudis},\nkeywords = {Tidal range energy, Marine energy, Hydrodynamic impact, Resource assessment, Consistent design},\nabstract = {Tidal power lagoons have the potential to provide a reliable and long-term source of renewable power. The implementation of tidal lagoons will impact the tidal conditions and hydrodynamics of the surrounding coastal system. Impact assessments in the academic literature have generally investigated working proposals from industry of various shapes and sizes. As such, differences between the impacts arising from considered power plants in varying sites are in part influenced by the individual scheme characteristics, potentially masking the influence of site-specific factors. In this study, scheme design consistency is maintained, providing a basis to focus solely on the merits of the selected locations with regards to any associated impacts. The simulated tidal power lagoons are located in the Bristol Channel and Irish Sea, two distinct but tidally connected regions on the British coastline with contrasting marine environment characteristics. Results indicate that the more constrained geometry of the Bristol Channel contributes to higher individual and cumulative impacts than potential developments in the Irish Sea. This is in part facilitated by the higher degree of blockage introduced by tidal lagoon developments in the Bristol Channel. Furthermore, far-field impacts are found to be less pronounced compared to predictions reported in tidal barrage modelling studies.}\n}\n\n
\n
\n\n\n
\n  Tidal power lagoons have the potential to provide a reliable and long-term source of renewable power. The implementation of tidal lagoons will impact the tidal conditions and hydrodynamics of the surrounding coastal system. Impact assessments in the academic literature have generally investigated working proposals from industry of various shapes and sizes. As such, differences between the impacts arising from considered power plants in varying sites are in part influenced by the individual scheme characteristics, potentially masking the influence of site-specific factors. In this study, scheme design consistency is maintained, providing a basis to focus solely on the merits of the selected locations with regards to any associated impacts. The simulated tidal power lagoons are located in the Bristol Channel and Irish Sea, two distinct but tidally connected regions on the British coastline with contrasting marine environment characteristics. Results indicate that the more constrained geometry of the Bristol Channel contributes to higher individual and cumulative impacts than potential developments in the Irish Sea. This is in part facilitated by the higher degree of blockage introduced by tidal lagoon developments in the Bristol Channel. Furthermore, far-field impacts are found to be less pronounced compared to predictions reported in tidal barrage modelling studies.\n
\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  \n    Optimization of Marine Renewable Energy Systems.\n  \n  \n  \n  \n\n\n  \n  Piggott, M. D., Kramer, S. C., Funke, S. W., Culley, D. M.,  & Angeloudis, A.\n\n\n  \n\n\n\n  In Reference Module in Earth Systems and Environmental Sciences. Elsevier,  2021.\n  \n\n\n\n
\n\n\n\n  \n  \n    \"OptimizationPaper\n   \n  \n\n  \n  \n    doi\n   \n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n   \n  \n    abstract \n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n\n\n\n
\n  
@incollection{PIGGOTT2021,\ntitle = {Optimization of Marine Renewable Energy Systems},\nbooktitle = {Reference Module in Earth Systems and Environmental Sciences},\npublisher = {Elsevier},\nyear = {2021},\nisbn = {978-0-12-409548-9},\ndoi = {https://doi.org/10.1016/B978-0-12-819727-1.00179-5},\nurl = {https://www.sciencedirect.com/science/article/pii/B9780128197271001795},\nauthor = {Matthew D. Piggott and Stephan C. Kramer and Simon W. Funke and David M. Culley and Athanasios Angeloudis},\nkeywords = {Tidal stream, Tidal range, Optimization, Modelling},\nabstract = {Optimizing marine renewable energy systems to maximize performance is key to their success. However, a range of physical, environmental, engineering, economic as well as computational challenges means that this is not straightforward. This article considers this topic, focusing on those systems whose performance is coupled to the hydrodynamics providing the resource; tidal power represents a clear example of this. In such cases system design must be optimal in relation to the resource's magnitude as well as its spatial and temporal variation, which are all dependent on the system's configuration and operation and so cannot be assumed to be known at the design stage. Designing based on the ambient resource could lead to under-performance. Coupling between the design and the resource has implications for the complexity of the optimization problem and potential hydrodynamical and environmental impacts. This coupling distinguishes many marine energy systems from other renewables which do not impact in any significant manner on the resource. The optimal design of marine energy systems thus represents a challenging and somewhat unique problem. However, feedback also opens up a number of possibilities where the resource can be ‘controlled’, to maximize the cumulative power obtained from multiple devices or plants, or to achieve some other complementary goal. Design optimization is thus critical, with many issues to consider. Due to the complexity of the problem a computational based solution is a necessity in all but the simplest scenarios. However, the coupled feedback requires that an iterative solution approach be used, which combined while the vast range of spatial and temporal scales means that methodological compromises need to be made. These compromises need to be understood, with the correct computational tool used at the appropriate point in the design process. This article reviews these challenges as well as the progress that has been made in addressing them.}\n}\n\n\n
\n
\n\n\n
\n  Optimizing marine renewable energy systems to maximize performance is key to their success. However, a range of physical, environmental, engineering, economic as well as computational challenges means that this is not straightforward. This article considers this topic, focusing on those systems whose performance is coupled to the hydrodynamics providing the resource; tidal power represents a clear example of this. In such cases system design must be optimal in relation to the resource's magnitude as well as its spatial and temporal variation, which are all dependent on the system's configuration and operation and so cannot be assumed to be known at the design stage. Designing based on the ambient resource could lead to under-performance. Coupling between the design and the resource has implications for the complexity of the optimization problem and potential hydrodynamical and environmental impacts. This coupling distinguishes many marine energy systems from other renewables which do not impact in any significant manner on the resource. The optimal design of marine energy systems thus represents a challenging and somewhat unique problem. However, feedback also opens up a number of possibilities where the resource can be ‘controlled’, to maximize the cumulative power obtained from multiple devices or plants, or to achieve some other complementary goal. Design optimization is thus critical, with many issues to consider. Due to the complexity of the problem a computational based solution is a necessity in all but the simplest scenarios. However, the coupled feedback requires that an iterative solution approach be used, which combined while the vast range of spatial and temporal scales means that methodological compromises need to be made. These compromises need to be understood, with the correct computational tool used at the appropriate point in the design process. This article reviews these challenges as well as the progress that has been made in addressing them.\n
\n\n\n
\n\n\n\n\n\n    
\n  
\n\n  
\n    
\n       \n      2020\n      \n        \n        (5)\n        \n      \n    
\n    
\n      \n  \n  
\n  \n\n  \n  \n  \n  \n  \n  Tidal range energy resource assessment of the Gulf of California, Mexico.\n  \n  \n  \n\n\n  \n  Mejia-Olivares, C. J., Haigh, I. D., Angeloudis, A., Lewis, M. J.,  & Neill, S. P.\n\n\n  \n\n\n\n  Renewable Energy.  2020.\n  \n\n\n\n
\n\n\n\n  \n\n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@article{Mejia-Olivares2020,\ntitle = "Tidal range energy resource assessment of the Gulf of California, Mexico",\nyear = {2020},\njournal = {Renewable Energy},\nauthor = "Mejia-Olivares, C. J. and Haigh, I. D. and Angeloudis, A. and Lewis, M. J. and Neill, S. P.",\n}\n\n
\n
\n\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  On the potential of linked-basin tidal power plants: An operational and coastal modelling assessment.\n  \n  \n  \n\n\n  \n  Angeloudis, A., Kramer, S. C., Hawkins, N.,  & Piggott, M. D.\n\n\n  \n\n\n\n  Renewable Energy, 155: 876-888.  2020.\n  \n\n\n\n
\n\n\n\n  \n\n  \n  \n    doi\n   \n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@article{Angeloudis2020,\ntitle = "On the potential of linked-basin tidal power plants: An operational and coastal modelling assessment",\nyear = {2020},\njournal = {Renewable Energy},\nvolume = {155},\npages = {876-888},\nauthor = "Angeloudis, A. and Kramer, S. C. and Hawkins, N. and Piggott, M. D.",\ndoi ="https://doi.org/10.1016/j.renene.2020.03.167",\n}\n\n\n
\n
\n\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  \n    Modelling the impact of tidal range energy on species communities.\n  \n  \n  \n  \n\n\n  \n  Baker, A. L., Craighead, R. M., Jarvis, E. J., Stenton, H. C., Angeloudis, A., Mackie, L., Avdis, A., Piggott, M. D.,  & Hill, J.\n\n\n  \n\n\n\n  Ocean & Coastal Management, 193: 105221.  2020.\n  \n\n\n\n
\n\n\n\n  \n  \n    \"ModellingPaper\n   \n  \n\n  \n  \n    doi\n   \n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n   \n  \n    abstract \n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n  \n  \n  \n  \n  \n  \n\n\n\n
\n  
@article{BAKER2020105221,\ntitle = "Modelling the impact of tidal range energy on species communities",\njournal = "Ocean & Coastal Management",\nvolume = "193",\npages = "105221",\nyear = "2020",\nissn = "0964-5691",\ndoi = "https://doi.org/10.1016/j.ocecoaman.2020.105221",\nurl = "http://www.sciencedirect.com/science/article/pii/S0964569120301319",\nauthor = "Amy L. Baker and Robert M. Craighead and Emma J. Jarvis and Harriett C. Stenton and Athanasios Angeloudis and Lucas Mackie and Alexandros Avdis and Matthew D. Piggott and Jon Hill",\nkeywords = "Tidal energy, Environmental impacts, Modelling",\nabstract = "Tidal energy has the potential to form a key component of the energy production in a number of countries, including the UK. Nonetheless, the deployment of tidal energy systems is associated with potential environmental impacts as prime resource sites often coincide with unique ecosystems inhabited by sensitive organisms. Previous studies have generally focused on the hydrodynamic impact of tidal energy schemes, i.e. how schemes alter the flow dynamics and sedimentary transport processes. Whilst these efforts are key in understanding environmental impacts, there is no straightforward step for translating sediment to faunal changes. Species distribution models offer methods to quantitatively predict certain possible impacts of tidal energy extraction. The River Severn is a distinguished candidate region for tidal energy in the UK featuring sites under stringent ecological protection regulations. We examine the impact of a proposed Severn tidal barrage on 14 species via the linking of hydrodynamic modelling to species distribution models. Through a selection of species that are linked via a simple food web system we extrapolate changes in prey species to the respective predator species. We show that species at lower trophic levels would be adversely affected by the barrage, but higher trophic level organisms increase in possible habitable area. Once food web relationships are acknowledged this increase in habitat area decreases, but is still net positive. Overall, all 14 species were affected, with most gaining in distribution area, and only four losing distribution area within the Severn Estuary. We conclude that a large-scale tidal barrage may have detrimental and complex impacts on species distribution, altering food web dynamics and altering food availability in the Severn Estuary. The methodology outlined herein can be transferred to the assessment and optimisation of prospective projects globally to aide in the sustainable introduction of the technology."\n}\n\n
\n
\n\n\n
\n  Tidal energy has the potential to form a key component of the energy production in a number of countries, including the UK. Nonetheless, the deployment of tidal energy systems is associated with potential environmental impacts as prime resource sites often coincide with unique ecosystems inhabited by sensitive organisms. Previous studies have generally focused on the hydrodynamic impact of tidal energy schemes, i.e. how schemes alter the flow dynamics and sedimentary transport processes. Whilst these efforts are key in understanding environmental impacts, there is no straightforward step for translating sediment to faunal changes. Species distribution models offer methods to quantitatively predict certain possible impacts of tidal energy extraction. The River Severn is a distinguished candidate region for tidal energy in the UK featuring sites under stringent ecological protection regulations. We examine the impact of a proposed Severn tidal barrage on 14 species via the linking of hydrodynamic modelling to species distribution models. Through a selection of species that are linked via a simple food web system we extrapolate changes in prey species to the respective predator species. We show that species at lower trophic levels would be adversely affected by the barrage, but higher trophic level organisms increase in possible habitable area. Once food web relationships are acknowledged this increase in habitat area decreases, but is still net positive. Overall, all 14 species were affected, with most gaining in distribution area, and only four losing distribution area within the Severn Estuary. We conclude that a large-scale tidal barrage may have detrimental and complex impacts on species distribution, altering food web dynamics and altering food availability in the Severn Estuary. The methodology outlined herein can be transferred to the assessment and optimisation of prospective projects globally to aide in the sustainable introduction of the technology.\n
\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  The potential for tidal range energy systems to Provide continuous power: a UK case study.\n  \n  \n  \n\n\n  \n  Mackie, L., Coles, D., Piggott, M. D.,  & Angeloudis, A.\n\n\n  \n\n\n\n  Journal of Marine Science & Engineering, 8.  2020.\n  \n\n\n\n
\n\n\n\n  \n\n  \n  \n    doi\n   \n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@article{Mackie2020,\ntitle = "The potential for tidal range energy systems to Provide continuous power: a UK case study",\nyear = {2020},\njournal = {Journal of Marine Science \\& Engineering},\nvolume = {8},\nissue = {10},\nauthor = "Mackie, L. and Coles, D. and Piggott, M. D. and Angeloudis, A.",\ndoi ="https://doi.org/10.3390/jmse8100780",\n}\n\n\n
\n
\n\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  Hydro-morphodynamics 2D modelling using a discontinuous Galerkin discretisation.\n  \n  \n  \n\n\n  \n  Clare, M., Percival, J., Kramer, S., Angeloudis, A., Cotter, C.,  & Piggott, M.\n\n\n  \n\n\n\n  In EGU General Assembly Conference Abstracts, pages 4990.  2020.\n  \n\n\n\n
\n\n\n\n  \n\n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@incollection{clare2020hydro,\n  title={Hydro-morphodynamics 2D modelling using a discontinuous Galerkin discretisation},\n  author={Clare, Mariana and Percival, James and Kramer, Stephan and Angeloudis, Athanasios and Cotter, Colin and Piggott, Matthew},\n  booktitle={EGU General Assembly Conference Abstracts},\n  pages={4990},\n  year={2020}\n}\n\n
\n
\n\n\n\n
\n\n\n\n\n\n    
\n  
\n\n  
\n    
\n       \n      2019\n      \n        \n        (7)\n        \n      \n    
\n    
\n      \n  \n  
\n  \n\n  \n  \n  \n  \n  \n  \n    Fate of large-scale vortices in idealized tidal lagoons.\n  \n  \n  \n  \n\n\n  \n  Vouriot, C. V. M., Angeloudis, A., Kramer, S. C.,  & Piggott, M. D.\n\n\n  \n\n\n\n  Environmental Fluid Mechanics, 19(2): 329–348. Apr 2019.\n  \n\n\n\n
\n\n\n\n  \n  \n    \"FatePaper\n   \n  \n\n  \n  \n    doi\n   \n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n   \n  \n    abstract \n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@Article{Vouriot2019,\nauthor="Vouriot, Carolanne V. M.\nand Angeloudis, A.\nand Kramer, Stephan C.\nand Piggott, Matthew D.",\ntitle="Fate of large-scale vortices in idealized tidal lagoons",\njournal="Environmental Fluid Mechanics",\nyear="2019",\nmonth="Apr",\nday="01",\nvolume="19",\nnumber="2",\npages="329--348",\nabstract="The generation and evolution of tidally-induced vortices in coastal and estuarine regions can influence water quality and sedimentary processes. These effects must be taken into consideration in the development of coastal reservoirs, barrages and lagoons, among other environmental flow applications. Results are presented here on the fate of large-scale vortices within confined tidally-forced domains. A computational approach is employed using the Thetis depth-averaged coastal ocean modeling framework. Initially, two test cases serve to demonstrate model capability in capturing the formation of dipoles downstream of oscillatory flow channels. Diagnostic quantities of vorticity and localized circulation are used to track the 2-D vortex evolution and dissipation. This approach is then applied to tidal lagoon geometries, where flows through the inlet induce a pair of counter rotating vortices (dipoles). Idealized model geometries and inlet conditions are used to determine the impact of three design parameters on large-scale vortical structures: (a) the lagoon geometry aspect ratio in the horizontal plane, (b) the inlet width and (c) the bathymetry profile as the coastline is approached. The dependence of vortex flushing behavior on the dimensionless ratio {\\$}{\\$}{\\{}{\\}}^{\\{}W{\\_}{\\backslash}text{\\{}i{\\}}{\\}}{\\backslash}!/{\\_}{\\{}UT{\\}}{\\$}{\\$}Wi/UT(where {\\$}{\\$}W{\\_}{\\backslash}text{\\{}i{\\}}{\\$}{\\$}Wiis the width of the inlet channel, U is the maximum velocity and T is the tidal period) is reaffirmed, while the side walls and the sloping bathymetry are found to affect the vortex dissipation process.",\nissn="1573-1510",\ndoi="10.1007/s10652-018-9626-4",\nurl="https://doi.org/10.1007/s10652-018-9626-4"\n}\n\n
\n
\n\n\n
\n  The generation and evolution of tidally-induced vortices in coastal and estuarine regions can influence water quality and sedimentary processes. These effects must be taken into consideration in the development of coastal reservoirs, barrages and lagoons, among other environmental flow applications. Results are presented here on the fate of large-scale vortices within confined tidally-forced domains. A computational approach is employed using the Thetis depth-averaged coastal ocean modeling framework. Initially, two test cases serve to demonstrate model capability in capturing the formation of dipoles downstream of oscillatory flow channels. Diagnostic quantities of vorticity and localized circulation are used to track the 2-D vortex evolution and dissipation. This approach is then applied to tidal lagoon geometries, where flows through the inlet induce a pair of counter rotating vortices (dipoles). Idealized model geometries and inlet conditions are used to determine the impact of three design parameters on large-scale vortical structures: (a) the lagoon geometry aspect ratio in the horizontal plane, (b) the inlet width and (c) the bathymetry profile as the coastline is approached. The dependence of vortex flushing behavior on the dimensionless ratio $}{$\\\\^\\W_\\text\\i\\\\\\!/_\\UT\\$}{$Wi/UT(where $}{$W_\\text\\i\\$}{$Wiis the width of the inlet channel, U is the maximum velocity and T is the tidal period) is reaffirmed, while the side walls and the sloping bathymetry are found to affect the vortex dissipation process.\n
\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  \n    Utilising the flexible generation potential of tidal range power plants to optimise economic value.\n  \n  \n  \n  \n\n\n  \n  Harcourt, F., Angeloudis, A.,  & Piggott, M. D.\n\n\n  \n\n\n\n  Applied Energy, 237: 873 - 884.  2019.\n  \n\n\n\n
\n\n\n\n  \n  \n    \"UtilisingPaper\n   \n  \n\n  \n  \n    doi\n   \n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@article{Harcourt2019,\ntitle = "Utilising the flexible generation potential of tidal range power plants to optimise economic value",\njournal = "Applied Energy",\nvolume = "237",\npages = "873 - 884",\nyear = "2019",\nissn = "0306-2619",\ndoi = "https://doi.org/10.1016/j.apenergy.2018.12.091",\nurl = "http://www.sciencedirect.com/science/article/pii/S0306261918319093",\nauthor = "Freddie Harcourt and Angeloudis, A.  and Matthew D. Piggott",\n}\n\n
\n
\n\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  Tidal range structure operation assessment and optimisation.\n  \n  \n  \n\n\n  \n  Angeloudis, A.\n\n\n  \n\n\n\n  Dams and Reservoirs, 29(2): 45-54.  2019.\n  \n\n\n\n
\n\n\n\n  \n\n  \n  \n    doi\n   \n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@article{Angeloudis2019,\ntitle = "Tidal range structure operation assessment and optimisation",\nvolume = {29},\nnumber = {2},\npages = {45-54},\nyear = {2019},\njournal = {Dams and Reservoirs},\nauthor = "Angeloudis, A.",\ndoi ="https://doi.org/10.1680/jdare.18.00042",\n}\n\n
\n
\n\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  Optimising the Income of a Fleet of Tidal Lagoons.\n  \n  \n  \n\n\n  \n  Mackie, L., Angeloudis, A., Harcourt, F.,  & Piggott, M. D.\n\n\n  \n\n\n\n  In . University of Oxford,  2019.\n  Oxford Tidal Energy Workshop\n\n\n\n
\n\n\n\n  \n\n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@incollection{Mackie:OTE2019,\nauthor = {Lucas Mackie and Angeloudis, A. and Freddie Harcourt and Matthew D. Piggott },\nnote = {Oxford Tidal Energy Workshop},\naddress = {University of Oxford},\ntitle = {Optimising the Income of a Fleet of Tidal Lagoons},\nyear = {2019}\n}\n\n
\n
\n\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  Potential water quality impacts of a tidal lagoon in Swansea bay .\n  \n  \n  \n\n\n  \n  Kadiri, M., Angeloudis, A., Piggott, M. D.,  & Zhang, H.\n\n\n  \n\n\n\n  In . Vienna,  2019.\n  EGU General Assembly Conference Abstract, 21, 15144\n\n\n\n
\n\n\n\n  \n\n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@incollection{Kadiri:EGU2019,\nauthor = {Margaret Kadiri and Angeloudis, A.  and  Matthew D. Piggott and Holly Zhang },\nnote = {EGU General Assembly Conference Abstract, 21, 15144},\naddress = {Vienna},\ntitle = {Potential water quality impacts of a tidal lagoon in Swansea bay },\nyear = {2019}\n}\n\n\n
\n
\n\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  Application of Adjoint Methods to Storm Surge Sensitivity Analysis.\n  \n  \n  \n\n\n  \n  Warder, S., Kramer, S. C., Angeloudis, A., Cotter, C. J., Horsburgh, K.,  & Piggott, M. D.\n\n\n  \n\n\n\n  In . Houston, Texas, US,  2019.\n  SIAM Conference on Mathematical and Computational Issues in the Geosciences\n\n\n\n
\n\n\n\n  \n\n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@incollection{Warder:SIAM2019,\nauthor = {Simon  Warder and Stephan C. Kramer and Angeloudis, A.  and  Colin J. Cotter and Kevin Horsburgh and Matthew D. Piggott},\nnote = {SIAM Conference on Mathematical and Computational Issues in the Geosciences},\naddress = {Houston, Texas, US},\ntitle = {Application of Adjoint Methods to Storm Surge Sensitivity Analysis},\nyear = {2019}\n}\n\n
\n
\n\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  Income optimisation of a fleet of tidal lagoons.\n  \n  \n  \n\n\n  \n  Mackie, L., Harcourt, F., Angeloudis, A.,  & Piggott, M. D.\n\n\n  \n\n\n\n  In EWTEC2019 Conference , pages 1–9, Naples,  2019. \n  \n\n\n\n
\n\n\n\n  \n\n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@inproceedings{Mackie2017b,\nauthor = {Mackie, Lucas and Harcourt, Freddie and Angeloudis, A. and Piggott, M. D. },\nbooktitle = {EWTEC2019 Conference },\naddress = {Naples},\ntitle = {{Income optimisation of a fleet of tidal lagoons}},\nyear = {2019},\npages = {1--9}\n}\n\n
\n
\n\n\n\n
\n\n\n\n\n\n    
\n  
\n\n  
\n    
\n       \n      2018\n      \n        \n        (12)\n        \n      \n    
\n    
\n      \n  \n  
\n  \n\n  \n  \n  \n  \n  \n  Modelling hydro-environmental impacts of tidal renewable energy projects in coastal waters.\n  \n  \n  \n\n\n  \n  Falconer, R. A., Angeloudis, A.,  & Ahmadian, R.\n\n\n  \n\n\n\n  In . World Scientific, 2 edition,  2018.\n  Handbook of Coastal and Ocean Engineering\n\n\n\n
\n\n\n\n  \n\n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@incollection{Falconer:Book2017,\nauthor = {Falconer, R. A. and Angeloudis, A. and Ahmadian, R.},\ntitle = {Modelling hydro-environmental impacts of tidal renewable energy projects in coastal waters},\nnote = { Handbook of Coastal and Ocean Engineering},\nedition = {2},\naddress = {World Scientific},\nyear = {2018}\n}\n\n
\n
\n\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  \n    Instantaneous transport of a passive scalar in a turbulent separated flow.\n  \n  \n  \n  \n\n\n  \n  Ouro, P., Fraga, B., Viti, N., Angeloudis, A., Stoesser, T.,  & Gualtieri, C.\n\n\n  \n\n\n\n  Environmental Fluid Mechanics, 18(2): 487–513.  2018.\n  \n\n\n\n
\n\n\n\n  \n  \n    \"InstantaneousPaper\n   \n  \n\n  \n  \n    doi\n   \n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n   \n  \n    abstract \n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@Article{Ouro2018,\nauthor="Ouro, P.\nand Fraga, B.\nand Viti, N.\nand Angeloudis, A..\nand Stoesser, T.\nand Gualtieri, C.",\ntitle="Instantaneous transport of a passive scalar in a turbulent separated flow",\njournal="Environmental Fluid Mechanics",\nyear="2018",\nday="01",\nvolume="18",\nnumber="2",\npages="487--513",\nabstract="The results of large-eddy simulations of flow and transient solute transport over a backward facing step and through a 180{\\textdegree} bend are presented. The simulations are validated successfully in terms of hydrodynamics and tracer transport with experimental velocity data and measured residence time distribution curves confirming the accuracy of the method. The hydrodynamics are characterised by flow separation and subsequent recirculation in vertical and horizontal directions and the solute dispersion process is a direct response to the significant unsteadiness and turbulence in the flow. The turbulence in the system is analysed and quantified in terms of power density spectra and covariance of velocity fluctuations. The injection of an instantaneous passive tracer and its dispersion through the system is simulated. Large-eddy simulations enable the resolution of the instantaneous flow field and it is demonstrated that the instabilities of intermittent large-scale structures play a distinguished role in the solute transport. The advection and diffusion of the scalar is governed by the severe unsteadiness of the flow and this is visualised and quantified. The analysis of the scalar mass transport budget quantifies the mechanisms controlling the turbulent mixing and reveals that the mass flux is dominated by advection.",\nissn="1573-1510",\ndoi="10.1007/s10652-017-9567-3",\nurl="https://doi.org/10.1007/s10652-017-9567-3"\n}\n\n\n
\n
\n\n\n
\n  The results of large-eddy simulations of flow and transient solute transport over a backward facing step and through a 180° bend are presented. The simulations are validated successfully in terms of hydrodynamics and tracer transport with experimental velocity data and measured residence time distribution curves confirming the accuracy of the method. The hydrodynamics are characterised by flow separation and subsequent recirculation in vertical and horizontal directions and the solute dispersion process is a direct response to the significant unsteadiness and turbulence in the flow. The turbulence in the system is analysed and quantified in terms of power density spectra and covariance of velocity fluctuations. The injection of an instantaneous passive tracer and its dispersion through the system is simulated. Large-eddy simulations enable the resolution of the instantaneous flow field and it is demonstrated that the instabilities of intermittent large-scale structures play a distinguished role in the solute transport. The advection and diffusion of the scalar is governed by the severe unsteadiness of the flow and this is visualised and quantified. The analysis of the scalar mass transport budget quantifies the mechanisms controlling the turbulent mixing and reveals that the mass flux is dominated by advection.\n
\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  \n    Optimising tidal range power plant operation .\n  \n  \n  \n  \n\n\n  \n  Angeloudis, A., Kramer, S. C., Avdis, A.,  & Piggott, M. D.\n\n\n  \n\n\n\n  Applied Energy , 212: 680 - 690.  2018.\n  \n\n\n\n
\n\n\n\n  \n  \n    \"OptimisingPaper\n   \n  \n\n  \n  \n    doi\n   \n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@article{Angeloudis2018,\ntitle = "Optimising tidal range power plant operation ",\njournal = "Applied Energy ",\nvolume = "212",\npages = "680 - 690",\nyear = "2018",\nissn = "0306-2619",\ndoi = "https://doi.org/10.1016/j.apenergy.2017.12.052",\nurl = "https://www.sciencedirect.com/science/article/pii/S0306261917317671",\nauthor = "Angeloudis, A. and Stephan C. Kramer and Alexandros Avdis and Matthew D. Piggott",\n}\n\n
\n
\n\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  Tidal range energy: assessment, optimisation and continuous generation options.\n  \n  \n  \n\n\n  \n  Angeloudis, A., Kramer, S. C., Hawkins, N.,  & Piggott, M. D.\n\n\n  \n\n\n\n  In . Vienna,  2018.\n  EGU General Assembly Conference Abstracts, 20, 16554\n\n\n\n
\n\n\n\n  \n\n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@incollection{Angeloudis:EGU2018,\nauthor = { Angeloudis, A. and Stephan C. Kramer and Noah Hawkins and Matthew D. Piggott},\nnote = {EGU General Assembly Conference Abstracts, 20, 16554},\naddress = {Vienna},\ntitle = {{Tidal range energy: assessment, optimisation and continuous generation options}},\nyear = {2018}\n}\n\n
\n
\n\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  An anisotropic mesh adaptation approach for regional tidal energy hydrodynamics modelling.\n  \n  \n  \n\n\n  \n  Barral, N., Angeloudis, A., Kramer, S. C., Gorman, G. J.,  & Piggott, M. D.\n\n\n  \n\n\n\n  In . Vienna,  2018.\n  EGU General Assembly Conference Abstracts, 20, 19168\n\n\n\n
\n\n\n\n  \n\n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@incollection{Barral:EGU2018,\nauthor = {Nicolas Barral and Angeloudis, A. and Stephan C. Kramer and Gerard J. Gorman and Matthew D. Piggott},\nnote = {EGU General Assembly Conference Abstracts, 20, 19168},\naddress = {Vienna},\ntitle = {{An anisotropic mesh adaptation approach for regional tidal energy hydrodynamics modelling}},\nyear = {2018}\n}\n\n
\n
\n\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  Tidal power plant modelling using anisotropic mesh adaptation in Thetis.\n  \n  \n  \n\n\n  \n  Barral, N., Angeloudis, A., Kramer, S. C., Gorman, G. G.,  & Piggott, M. D.\n\n\n  \n\n\n\n  In . Imperial College, London,  2018.\n  Firedrake '18 Workshop Abstracts\n\n\n\n
\n\n\n\n  \n\n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@incollection{Barral:Firedrake18,\nauthor = {Nicolas Barral and Angeloudis, A. and Stephan C. Kramer and Gerard G. Gorman and Matthew D. Piggott },\nnote = {Firedrake '18 Workshop Abstracts},\naddress = {Imperial College, London},\ntitle = {{Tidal power plant modelling using anisotropic mesh adaptation in \\textit{Thetis}}},\nyear = {2018}\n}\n\n
\n
\n\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  Thetis, a coastal ocean model based on Firedrake.\n  \n  \n  \n\n\n  \n  Kramer, S. C., Karna, T., Mitchell, L., Angeloudis, A., Ham, D.,  & Piggott, M. D.\n\n\n  \n\n\n\n  In . Imperial College, London,  2018.\n  Firedrake '18 Workshop Abstracts\n\n\n\n
\n\n\n\n  \n\n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@incollection{Kramer:Firedrake18,\nauthor = {Stephan C. Kramer and Tuomas Karna and Lawrence Mitchell and Angeloudis, A. and David Ham and Matthew D. Piggott },\nnote = {Firedrake '18 Workshop Abstracts},\naddress = {Imperial College, London},\ntitle = {{\\textit{Thetis}, a coastal ocean model based on \\textit{Firedrake}}},\nyear = {2018}\n}\n\n\n
\n
\n\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  Hydrodynamic and scalar transport modelling in disinfection contact tanks.\n  \n  \n  \n\n\n  \n  Angeloudis, A., Ouro, P., Gualtieri, C.,  & Stoesser, T.\n\n\n  \n\n\n\n  In . University of Edinburgh,  2018.\n  19th Biennial International Seminar on Water Resources and Environmental Management\n\n\n\n
\n\n\n\n  \n\n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@incollection{Angeloudis:WREM2018,\nauthor = { Angeloudis, A. and Pablo Ouro and Carlo Gualtieri and Thorsten Stoesser},\nnote = { 19th Biennial International Seminar on Water Resources and Environmental Management},\naddress = {University of Edinburgh},\ntitle = {{Hydrodynamic and scalar transport modelling in disinfection contact tanks}},\nyear = {2018}\n}\n\n
\n
\n\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  \n    Tidal range energy resource and optimization – Past perspectives and future challenges.\n  \n  \n  \n  \n\n\n  \n  Neill, S. P., Angeloudis, A., Robins, P. E., Walkington, I., Ward, S. L., Masters, I., Lewis, M. J., Piano, M., Avdis, A., Piggott, M. D., Aggidis, G., Evans, P., Adcock, T. A., Židonis, A., Ahmadian, R.,  & Falconer, R.\n\n\n  \n\n\n\n  Renewable Energy, 127: 763 - 778.  2018.\n  \n\n\n\n
\n\n\n\n  \n  \n    \"TidalPaper\n   \n  \n\n  \n  \n    doi\n   \n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n\n\n\n
\n  
@article{Neill2018,\ntitle = "Tidal range energy resource and optimization – Past perspectives and future challenges",\njournal = "Renewable Energy",\nvolume = "127",\npages = "763 - 778",\nyear = "2018",\nissn = "0960-1481",\ndoi = "https://doi.org/10.1016/j.renene.2018.05.007",\nurl = "http://www.sciencedirect.com/science/article/pii/S0960148118305263",\nauthor = "Simon P. Neill and Angeloudis, A. and Peter E. Robins and Ian Walkington and Sophie L. Ward and Ian Masters and Matt J. Lewis and Marco Piano and Alexandros Avdis and Matthew D. Piggott and George Aggidis and Paul Evans and Thomas A.A. Adcock and Audrius Židonis and Reza Ahmadian and Roger Falconer",\nkeywords = "Tidal lagoon, Tidal barrage, Resource assessment, Optimization, Hendry Review, Swansea Bay"\n}\n\n\n
\n
\n\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  Comparison of twin-basin lagoon systems against conventional tidal power plant designs.\n  \n  \n  \n\n\n  \n  Angeloudis, A., Hawkins, N., Kramer, S. C.,  & Piggott, M. D.\n\n\n  \n\n\n\n  In RENEW2018 Conference , pages 1–8, Lisbon,  2018. \n  \n\n\n\n
\n\n\n\n  \n\n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@inproceedings{Angeloudis:RENEW2018,\nauthor = {Angeloudis, A. and Hawkins, Noah  and Kramer, S. C. and Piggott, M. D. },\nbooktitle = {RENEW2018 Conference },\naddress = {Lisbon},\ntitle = {{Comparison of twin-basin lagoon systems against conventional tidal power plant designs}},\nyear = {2018},\npages = {1--8}\n}\n\n
\n
\n\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  Competition effects between nearby tidal turbine arrays - optimal design for the Alderney Race.\n  \n  \n  \n\n\n  \n  Goes, Z., Piggott, M. D., Kramer, S. C., Avdis, A, Angeloudis, A.,  & Cotter, C. J.\n\n\n  \n\n\n\n  In RENEW2018 Conference , pages 1–8, Lisbon,  2018. \n  \n\n\n\n
\n\n\n\n  \n\n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@inproceedings{Goes:RENEW2018,\nauthor = {Goes, Zoe and Piggott, M. D. and  Kramer, S. C.  and Avdis, A and Angeloudis, A.  and Cotter, C. J. },\nbooktitle = {RENEW2018 Conference },\naddress = {Lisbon},\ntitle = {{Competition effects between nearby tidal turbine arrays - optimal design for the Alderney Race}},\nyear = {2018},\npages = {1--8}\n}\n\n
\n
\n\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  An anisotropic mesh adaptation framework for coastal simulations.\n  \n  \n  \n\n\n  \n  Barral, N., Wallwork, J., Kramer, S. C., Angeloudis, A., Gorman, G. G.,  & Piggott, M. D.\n\n\n  \n\n\n\n  In . Imperial College, London,  2018.\n  Firedrake '18 Workshop Abstracts\n\n\n\n
\n\n\n\n  \n\n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@incollection{Barral:IMUM18,\nauthor = {Nicolas Barral and Joe Wallwork and Stephan C. Kramer and Angeloudis, A. and Gerard G. Gorman and Matthew D. Piggott },\nnote = {Firedrake '18 Workshop Abstracts},\naddress = {Imperial College, London},\ntitle = {{An anisotropic mesh adaptation framework for coastal simulations}},\nyear = {2018}\n}\n\n\n
\n
\n\n\n\n
\n\n\n\n\n\n    
\n  
\n\n  
\n    
\n       \n      2017\n      \n        \n        (10)\n        \n      \n    
\n    
\n      \n  \n  
\n  \n\n  \n  \n  \n  \n  \n  Influence of storm surge on tidal range energy.\n  \n  \n  \n\n\n  \n  Lewis, M., Angeloudis, A., Robins, P., Evans, P.,  & Neill, S.\n\n\n  \n\n\n\n  Energy, 122: 25–36.  2017.\n  \n\n\n\n
\n\n\n\n  \n\n  \n  \n    doi\n   \n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n   \n  \n    abstract \n  \n\n  \n   \n  \n    1 download\n  \n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@article{Lewis2017,\nabstract = {The regular and predictable nature of the tide makes the generation of electricity with a tidal lagoon or barrage an attractive form of renewable energy, yet storm surges affect the total water-level. Here we present the first assessment of the potential impact of storm surges on tidal-range power. Water-level data (2000–2012) at nine UK tide gauges, where tidal-range energy is suitable for development (e.g. Bristol Channel), was used to predict power. Storm surge affected annual resource estimates −5{\\%} to +3{\\%}, due to inter-annual variability, which is lower than other sources of uncertainty (e.g. lagoon design); therefore, annual resource estimation from astronomical tides alone appears sufficient. However, instantaneous power output was often significantly affected (Normalised Root Mean Squared Error: 3{\\%}–8{\\%}, Scatter Index: 15{\\%}–41{\\%}) and so a storm surge prediction system may be required for any future electricity generation scenario that includes large amounts of tidal-range generation. The storm surge influence to tidal-range power varied with the electricity generation strategy considered (flooding tide only, ebb-only or dual; both flood and ebb), but with some spatial and temporal variability. The flood-only strategy was most affected by storm surge, mostly likely because tide-surge interaction increases the chance of higher water-levels on the flooding tide.},\nauthor = {Lewis, M.J. and Angeloudis, A. and Robins, P.E. and Evans, P.S. and Neill, S.P.},\ndoi = {10.1016/j.energy.2017.01.068},\nissn = {03605442},\njournal = {Energy},\npages = {25--36},\nvolume = {122},\ntitle = {{Influence of storm surge on tidal range energy}},\nyear = {2017}\n}\n
\n
\n\n\n
\n  The regular and predictable nature of the tide makes the generation of electricity with a tidal lagoon or barrage an attractive form of renewable energy, yet storm surges affect the total water-level. Here we present the first assessment of the potential impact of storm surges on tidal-range power. Water-level data (2000–2012) at nine UK tide gauges, where tidal-range energy is suitable for development (e.g. Bristol Channel), was used to predict power. Storm surge affected annual resource estimates −5% to +3%, due to inter-annual variability, which is lower than other sources of uncertainty (e.g. lagoon design); therefore, annual resource estimation from astronomical tides alone appears sufficient. However, instantaneous power output was often significantly affected (Normalised Root Mean Squared Error: 3%–8%, Scatter Index: 15%–41%) and so a storm surge prediction system may be required for any future electricity generation scenario that includes large amounts of tidal-range generation. The storm surge influence to tidal-range power varied with the electricity generation strategy considered (flooding tide only, ebb-only or dual; both flood and ebb), but with some spatial and temporal variability. The flood-only strategy was most affected by storm surge, mostly likely because tide-surge interaction increases the chance of higher water-levels on the flooding tide.\n
\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  \n    On the Values for the Turbulent Schmidt Number in Environmental Flows.\n  \n  \n  \n  \n\n\n  \n  Gualtieri, C., Angeloudis, A., Bombardelli, F., Jha, S.,  & Stoesser, T.\n\n\n  \n\n\n\n  Fluids, 2(2).  2017.\n  \n\n\n\n
\n\n\n\n  \n  \n    \"OnPaper\n   \n  \n\n  \n  \n    doi\n   \n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n   \n  \n    abstract \n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@Article{Gualtieri2017,\nAUTHOR = {Gualtieri, Carlo and Angeloudis, A. and Bombardelli, Fabian and Jha, Sanjeev and Stoesser, Thorsten},\nTITLE = {On the Values for the Turbulent Schmidt Number in Environmental Flows},\nJOURNAL = {Fluids},\nVOLUME = {2},\nYEAR = {2017},\nNUMBER = {2},\nURL = {http://www.mdpi.com/2311-5521/2/2/17},\nISSN = {2311-5521},\nABSTRACT = {Computational Fluid Dynamics (CFD) has consolidated as a tool to provide understanding and quantitative information regarding many complex environmental flows. The accuracy and reliability of CFD modelling results oftentimes come under scrutiny because of issues in the implementation of and input data for those simulations. Regarding the input data, if an approach based on the Reynolds-Averaged Navier-Stokes (RANS) equations is applied, the turbulent scalar fluxes are generally estimated by assuming the standard gradient diffusion hypothesis (SGDH), which requires the definition of the turbulent Schmidt number, Sct (the ratio of momentum diffusivity to mass diffusivity in the turbulent flow). However, no universally-accepted values of this parameter have been established or, more importantly, methodologies for its computation have been provided. This paper firstly presents a review of previous studies about Sct in environmental flows, involving both water and air systems. Secondly, three case studies are presented where the key role of a correct parameterization of the turbulent Schmidt number is pointed out. These include: (1) transverse mixing in a shallow water flow; (2) tracer transport in a contact tank; and (3) sediment transport in suspension. An overall picture on the use of the Schmidt number in CFD emerges from the paper.},\nDOI = {10.3390/fluids2020017}\n}\n\n
\n
\n\n\n
\n  Computational Fluid Dynamics (CFD) has consolidated as a tool to provide understanding and quantitative information regarding many complex environmental flows. The accuracy and reliability of CFD modelling results oftentimes come under scrutiny because of issues in the implementation of and input data for those simulations. Regarding the input data, if an approach based on the Reynolds-Averaged Navier-Stokes (RANS) equations is applied, the turbulent scalar fluxes are generally estimated by assuming the standard gradient diffusion hypothesis (SGDH), which requires the definition of the turbulent Schmidt number, Sct (the ratio of momentum diffusivity to mass diffusivity in the turbulent flow). However, no universally-accepted values of this parameter have been established or, more importantly, methodologies for its computation have been provided. This paper firstly presents a review of previous studies about Sct in environmental flows, involving both water and air systems. Secondly, three case studies are presented where the key role of a correct parameterization of the turbulent Schmidt number is pointed out. These include: (1) transverse mixing in a shallow water flow; (2) tracer transport in a contact tank; and (3) sediment transport in suspension. An overall picture on the use of the Schmidt number in CFD emerges from the paper.\n
\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  Comparison of 0-D, 1-D and 2-D models for tidal range energy resource assesments.\n  \n  \n  \n\n\n  \n  Angeloudis, A., Piggott, M. D., Kramer, S. C., Avdis, A., Coles, D.,  & Christou, M.\n\n\n  \n\n\n\n  In EWTEC2017 Conference , pages 1–9, Cork,  2017. \n  \n\n\n\n
\n\n\n\n  \n\n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@inproceedings{Angeloudis2017e,\nauthor = {Angeloudis, A. and Piggott, M. D. and Kramer, S. C. and Avdis, A. and Coles, D. and Christou, M.},\nbooktitle = {EWTEC2017 Conference },\naddress = {Cork},\ntitle = {{Comparison of 0-D, 1-D and 2-D models for tidal range energy resource assesments}},\nyear = {2017},\npages = {1--9}\n}\n\n
\n
\n\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  Optimisation of tidal stream turbine arrays within Alderney Race.\n  \n  \n  \n\n\n  \n  Coles, D., Kramer, S. C., Piggott, M. D., Avdis, A.,  & Angeloudis, A.\n\n\n  \n\n\n\n  In EWTEC2017 Conference , pages 1–10, Cork,  2017. \n  \n\n\n\n
\n\n\n\n  \n\n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@inproceedings{Coles2017c,\nauthor = {Coles, D. and Kramer, S. C. and Piggott, M. D. and Avdis, A. and Angeloudis, A.},\nbooktitle = {EWTEC2017 Conference },\naddress = {Cork},\ntitle = {{Optimisation of tidal stream turbine arrays within Alderney Race}},\nyear = {2017},\npages = {1--10}\n}\n\n
\n
\n\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  CFD analysis and validation of a chlorine disinfection tank.\n  \n  \n  \n\n\n  \n  Ouro, P. B., Fraga, B., Viti, N., Angeloudis, A., Gualtieri, C.,  & Stoesser, T.\n\n\n  \n\n\n\n  In 37$^{th}$ IAHR World Congress , pages 1–9, Kuala Lumpur,  2017. \n  \n\n\n\n
\n\n\n\n  \n\n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@inproceedings{Ouro2017c,\nauthor = {Ouro, P. B. and Fraga, B. and Viti, N. and Angeloudis, A. and Gualtieri, C. and Stoesser, T.},\nbooktitle = {37$^{th}$ IAHR World Congress },\naddress = {Kuala Lumpur},\ntitle = {{CFD analysis and validation of a chlorine disinfection tank}},\nyear = {2017},\npages = {1--9}\n}\n\n
\n
\n\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  Storm surge and tidal range energy.\n  \n  \n  \n\n\n  \n  Lewis, M. J., Angeloudis, A., Robins, P. E., Evans, P. S.,  & Neill, S. P.\n\n\n  \n\n\n\n  In . Vienna,  2017.\n  EGU General Assembly Conference Abstracts, 19, 254\n\n\n\n
\n\n\n\n  \n\n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@incollection{Lewis:EGU2017,\nauthor = {Lewis, M. J. and Angeloudis, A. and Robins, P. E. and Evans, P. S. and Neill, S. P.},\nnote = {EGU General Assembly Conference Abstracts, 19, 254},\naddress = {Vienna},\ntitle = {{Storm surge and tidal range energy}},\nyear = {2017}\n}\n\n
\n
\n\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  Modelling the Coastal Zone using Thetis.\n  \n  \n  \n\n\n  \n  Kramer, S. C., Karna, T., Coles, D., Angeloudis, A., Avdis, A.,  & Piggott, M. D.\n\n\n  \n\n\n\n  In . Stanford,  2017.\n  IMUM 2017 Workshop Abstracts\n\n\n\n
\n\n\n\n  \n\n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@incollection{Kramer:IMUM2017,\nauthor = {Kramer, S. C. and Karna, T. and Coles, D. and Angeloudis, A. and Avdis, A. and Piggott, M. D. },\nnote = {IMUM 2017 Workshop Abstracts},\naddress = {Stanford},\ntitle = {{Modelling the Coastal Zone using Thetis}},\nyear = {2017}\n}\n\n
\n
\n\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  Applications of Thetis: Tidal energy resource assessment and optimisation.\n  \n  \n  \n\n\n  \n  Angeloudis, A., Coles, D., Kramer, S. C.,  & Piggott, M. D.\n\n\n  \n\n\n\n  In . Imperial College, London,  2017.\n  Firedrake '17 Workshop Abstracts\n\n\n\n
\n\n\n\n  \n\n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@incollection{Angeloudis:Firedrake17,\nauthor = {Angeloudis, A. and Coles, D. and Kramer, S. C. and Piggott, M. D. },\nnote = {Firedrake '17 Workshop Abstracts},\naddress = {Imperial College, London},\ntitle = {{Applications of \\textit{Thetis}: Tidal energy resource assessment and optimisation}},\nyear = {2017}\n}\n\n
\n
\n\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  Sensitivity of tidal lagoon and barrage hydrodynamic impacts and energy outputs to operational characteristics.\n  \n  \n  \n\n\n  \n  Angeloudis, A.,  & Falconer, R. A.\n\n\n  \n\n\n\n  Renewable Energy, 114(A): 337–351.  2017.\n  \n\n\n\n
\n\n\n\n  \n\n  \n  \n    doi\n   \n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n   \n  \n    abstract \n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@article{Angeloudis2017b,\nabstract = {The feasibility and sustainable operation of tidal lagoons and barrages has been under scrutiny over uncertainties with regards to their environmental impacts, potential interactions and energy output. A numerical modelling methodology that evaluates their effects on the hydro-environment has been refined to consider technical constraints and specifications associated with variable turbine designs and operational sequences. The method has been employed to assess a number of proposals and their combinations within the Bristol Channel and Severn Estuary in the UK. Operational challenges associated with tidal range power plants are highlighted, while also presenting the capabilities of modelling tools tailored to their assessment. Results indicate that as the project scale increases so does its relative hydrodynamic impact, which may compromise annual energy output expectations if not accounted for. However, the manner in which such projects are operated can also have a significant impact on changing the local hydro-environment, including the ecology and morphology. Therefore, it is imperative that tidal range power plants are designed in such a way that efficiently taps into renewable energy sources, with minimal interference to the regional hydro-environment through their operation.},\nauthor = {Angeloudis, A.  and Falconer, Roger A.},\ndoi = {10.1016/j.renene.2016.08.033},\nfile = {:home/aa406/.local/share/data/Mendeley Ltd./Mendeley Desktop/Downloaded/Angeloudis, Falconer - 2016 - Sensitivity of tidal lagoon and barrage hydrodynamic impacts and energy outputs to operational characte(2).pdf:pdf},\nissn = {09601481},\njournal = {Renewable Energy},\nvolume = {114(A)},\ntitle = {{Sensitivity of tidal lagoon and barrage hydrodynamic impacts and energy outputs to operational characteristics}},\nyear = {2017},\npages = {337--351}\n}\n\n
\n
\n\n\n
\n  The feasibility and sustainable operation of tidal lagoons and barrages has been under scrutiny over uncertainties with regards to their environmental impacts, potential interactions and energy output. A numerical modelling methodology that evaluates their effects on the hydro-environment has been refined to consider technical constraints and specifications associated with variable turbine designs and operational sequences. The method has been employed to assess a number of proposals and their combinations within the Bristol Channel and Severn Estuary in the UK. Operational challenges associated with tidal range power plants are highlighted, while also presenting the capabilities of modelling tools tailored to their assessment. Results indicate that as the project scale increases so does its relative hydrodynamic impact, which may compromise annual energy output expectations if not accounted for. However, the manner in which such projects are operated can also have a significant impact on changing the local hydro-environment, including the ecology and morphology. Therefore, it is imperative that tidal range power plants are designed in such a way that efficiently taps into renewable energy sources, with minimal interference to the regional hydro-environment through their operation.\n
\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  \n    Large-eddy simulation of shallow turbulent wakes behind a conical island.\n  \n  \n  \n  \n\n\n  \n  Ouro, P., Wilson, C. A. M. E., Evans, P.,  & Angeloudis, A.\n\n\n  \n\n\n\n  Physics of Fluids, 29(12): 126601.  2017.\n  \n\n\n\n
\n\n\n\n  \n  \n    \"Large-eddyPaper\n   \n  \n\n  \n  \n    doi\n   \n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@article{Ouro2017,\nauthor = {Pablo Ouro and Catherine A. M. E. Wilson and Paul Evans and Angeloudis, A.},\ntitle = {Large-eddy simulation of shallow turbulent wakes behind a conical island},\njournal = {Physics of Fluids},\nvolume = {29},\nnumber = {12},\npages = {126601},\nyear = {2017},\ndoi = {10.1063/1.5004028},\n\nURL = { \n        https://doi.org/10.1063/1.5004028\n},\n\n\n}\n\n\n
\n
\n\n\n\n
\n\n\n\n\n\n    
\n  
\n\n  
\n    
\n       \n      2016\n      \n        \n        (4)\n        \n      \n    
\n    
\n      \n  \n  
\n  \n\n  \n  \n  \n  \n  \n  Operation modelling of tidal energy lagoon proposals within the Bristol channel and Severn Estuary.\n  \n  \n  \n\n\n  \n  Angeloudis, A.,  & Falconer, R. A.\n\n\n  \n\n\n\n  In RENEW2016 Conference, pages 503–512, Lisbon,  2016. \n  \n\n\n\n
\n\n\n\n  \n\n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@inproceedings{Angeloudis2016,\naddress = {Lisbon},\nauthor = {Angeloudis, A. and Falconer, R. A.},\nbooktitle = {RENEW2016 Conference},\nfile = {:home/than/Dropbox/Thanasis{\\_}Backup/MyPapers/RENEW2016{\\_}final.pdf:pdf},\nisbn = {9781138626270},\npages = {503--512},\ntitle = {{Operation modelling of tidal energy lagoon proposals within the Bristol channel and Severn Estuary}},\nyear = {2016}\n}\n\n
\n
\n\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  Numerical model simulations for optimisation of tidal lagoon schemes.\n  \n  \n  \n\n\n  \n  Angeloudis, A., Ahmadian, R., Falconer, R. A.,  & Bockelmann-Evans, B.\n\n\n  \n\n\n\n  Applied Energy, 165: 522–536.  2016.\n  \n\n\n\n
\n\n\n\n  \n\n  \n  \n    doi\n   \n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n   \n  \n    abstract \n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@article{Angeloudis2016d,\nabstract = {This study considers environmental impacts and the power production potential of a number of coastally attached tidal lagoons, proposed along the North Wales coast, UK. Initially, the impoundment shape, turbine and sluice gate locations were modified according to the regional bathymetric data. A refined 0-Dimensional approach was implemented to optimise the lagoon operation, based on given turbine and sluice gate specifications. In turn, a two-dimensional numerical model, based on an unstructured triangular mesh, has been refined to simulate the hydrodynamic processes, initially without and subsequently in the presence of the lagoons. The hydrodynamic model adopts a TVD finite volume method to solve the 2D shallow water equations, based on a second-order accurate spatial and temporal numerical scheme. An encouraging performance is apparent in reproducing the established conditions encountered in the region through comparisons against available data. The incorporation of tidal lagoons in the model appears to have a considerable effect on the flow structure in the region, by inducing high velocity accelerations near the sluices and turbines, depending on the stage of the tidal cycle. Considering a two-way generation regime, it is outlined that the loss of intertidal regions can be minimised, which is a major source of concern with regards to the environmental impact of such schemes through an ebb-generation operation. Particular focus is directed towards the comparisons between the 0-D and 2-D modelling results, an aspect which has not been reported previously. Predictions of the models diverge as the scale of the lagoon project increases, but it is highlighted that the 0-D methodology can be utilised for the optimisation of the processes in the initial stages of design before proceeding to more sophisticated numerical model simulations.},\nauthor = {Angeloudis, A. and Ahmadian, R. and Falconer, R. A. and Bockelmann-Evans, B.},\ndoi = {10.1016/j.apenergy.2015.12.079},\nfile = {:home/than/.local/share/data/Mendeley Ltd./Mendeley Desktop/Downloaded/Angeloudis et al. - 2016 - Numerical model simulations for optimisation of tidal lagoon schemes(2).pdf:pdf},\nissn = {03062619},\njournal = {Applied Energy},\npages = {522--536},\ntitle = {{Numerical model simulations for optimisation of tidal lagoon schemes}},\nvolume = {165},\nyear = {2016}\n}\n
\n
\n\n\n
\n  This study considers environmental impacts and the power production potential of a number of coastally attached tidal lagoons, proposed along the North Wales coast, UK. Initially, the impoundment shape, turbine and sluice gate locations were modified according to the regional bathymetric data. A refined 0-Dimensional approach was implemented to optimise the lagoon operation, based on given turbine and sluice gate specifications. In turn, a two-dimensional numerical model, based on an unstructured triangular mesh, has been refined to simulate the hydrodynamic processes, initially without and subsequently in the presence of the lagoons. The hydrodynamic model adopts a TVD finite volume method to solve the 2D shallow water equations, based on a second-order accurate spatial and temporal numerical scheme. An encouraging performance is apparent in reproducing the established conditions encountered in the region through comparisons against available data. The incorporation of tidal lagoons in the model appears to have a considerable effect on the flow structure in the region, by inducing high velocity accelerations near the sluices and turbines, depending on the stage of the tidal cycle. Considering a two-way generation regime, it is outlined that the loss of intertidal regions can be minimised, which is a major source of concern with regards to the environmental impact of such schemes through an ebb-generation operation. Particular focus is directed towards the comparisons between the 0-D and 2-D modelling results, an aspect which has not been reported previously. Predictions of the models diverge as the scale of the lagoon project increases, but it is highlighted that the 0-D methodology can be utilised for the optimisation of the processes in the initial stages of design before proceeding to more sophisticated numerical model simulations.\n
\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  Representation and operation of tidal energy impoundments in a coastal hydrodynamic model.\n  \n  \n  \n\n\n  \n  Angeloudis, A., Falconer, R., Bray, S.,  & Ahmadian, R.\n\n\n  \n\n\n\n  Renewable Energy, 99: 1103-1115.  2016.\n  \n\n\n\n
\n\n\n\n  \n\n  \n  \n    doi\n   \n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n   \n  \n    abstract \n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n  \n  \n  \n  \n  \n  \n\n\n\n
\n  
@article{Angeloudis2016b,\nabstract = {{\\textcopyright} 2016 Elsevier LtdA methodology associated with the simulation of tidal range energy projects through a coastal hydrodynamic model is discussed regarding its capabilities and limitations. Particular focus is directed towards the formulations imposed for the representation of hydraulic structures and the corresponding model boundary conditions. Details of refinements are presented that would be applicable in representing the flow (and momentum flux) expected through tidal range turbines to inform the regional modelling of tidal lagoons and barrages. A conceptual tidal lagoon along the North Wales coast, a barrage across the Severn Estuary and the Swansea Bay Lagoon proposal are used to demonstrate the effect of the refinements for projects of a different scale. The hydrodynamic model results indicate that boundary refinements, particularly in the form of accurate momentum conservation, have a noticeable influence on near-field conditions and can be critical when assessing the environmental impact arising from the schemes. Finally, it is shown that these models can be used to guide and improve tidal impoundment proposals.},\nauthor = {Angeloudis, A. and Falconer, R.A. and Bray, S. and Ahmadian, R.},\ndoi = {10.1016/j.renene.2016.08.004},\nfile = {:home/than/.local/share/data/Mendeley Ltd./Mendeley Desktop/Downloaded/Angeloudis et al. - 2016 - Representation and operation of tidal energy impoundments in a coastal hydrodynamic model.pdf:pdf},\nissn = {18790682 09601481},\njournal = {Renewable Energy},\nkeywords = {[Numerical modelling, Renewable tidal energy, Seve},\ntitle = {{Representation and operation of tidal energy impoundments in a coastal hydrodynamic model}},\npages = {1103-1115},\nvolume = {99},\nyear = {2016}\n}\n
\n
\n\n\n
\n  © 2016 Elsevier LtdA methodology associated with the simulation of tidal range energy projects through a coastal hydrodynamic model is discussed regarding its capabilities and limitations. Particular focus is directed towards the formulations imposed for the representation of hydraulic structures and the corresponding model boundary conditions. Details of refinements are presented that would be applicable in representing the flow (and momentum flux) expected through tidal range turbines to inform the regional modelling of tidal lagoons and barrages. A conceptual tidal lagoon along the North Wales coast, a barrage across the Severn Estuary and the Swansea Bay Lagoon proposal are used to demonstrate the effect of the refinements for projects of a different scale. The hydrodynamic model results indicate that boundary refinements, particularly in the form of accurate momentum conservation, have a noticeable influence on near-field conditions and can be critical when assessing the environmental impact arising from the schemes. Finally, it is shown that these models can be used to guide and improve tidal impoundment proposals.\n
\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  \n    Contact Tank Design Impact on Process Performance.\n  \n  \n  \n  \n\n\n  \n  Angeloudis, A., Stoesser, T., Gualtieri, C.,  & Falconer, R. A\n\n\n  \n\n\n\n  Environmental Modeling & Assessment, 21(5): 563–576.  2016.\n  \n\n\n\n
\n\n\n\n  \n  \n    \"ContactPaper\n   \n  \n\n  \n  \n    doi\n   \n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n   \n  \n    abstract \n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n\n\n\n
\n  
@article{Angeloudis2016g,\nabstract = {In this study three-dimensional numerical models were refined to predict reactive processes in disinfection contact tanks (CTs). The methodology departs from the traditional performance assessment of contact tanks via hydraulic efficiency indicators, as it simulates directly transport and decay of the disinfectant, inactivation of pathogens and accumulation of by-products. The method is applied to study the effects of inlet and compartment design on contact tank performance, with special emphasis on turbulent mixing and minimisation of internal recirculation and short-circuiting. In contrast to the conventional approach of maximising the length-to-width ratio, the proposed design changes are aimed at addressing and mitigating adverse hydrodynamic structures, which have historically led to poor hydraulic efficiency in many existing contact tanks. The results suggest that water treatment facilities can benefit from in-depth analyses of the flow and kinetic processes through computational fluid dynamics, resulting in up to 38 {\\{}{\\%}{\\}} more efficient pathogen inactivation and 14 \\& less disinfection by-product formation.},\nauthor = {Angeloudis, A. and Stoesser, Thorsten and Gualtieri, Carlo and Falconer, Roger A},\ndoi = {10.1007/s10666-016-9502-x},\nfile = {:home/than/.local/share/data/Mendeley Ltd./Mendeley Desktop/Downloaded/Angeloudis et al. - 2016 - Contact Tank Design Impact on Process Performance.pdf:pdf},\nissn = {1573-2967},\njournal = {Environmental Modeling \\& Assessment},\nkeywords = {Chlorine contact tanks,Numerical simulation,Reactor hydrodynamics,Residence time distribution,Water disinfection,chlorine contact tanks,numerical simulation,reactor hydrodynamics,residence,water disinfection},\nnumber = {5},\npages = {563--576},\npublisher = {Environmental Modeling \\& Assessment},\ntitle = {{Contact Tank Design Impact on Process Performance}},\nurl = {http://dx.doi.org/10.1007/s10666-016-9502-x},\nvolume = {21},\nyear = {2016}\n}\n\n
\n
\n\n\n
\n  In this study three-dimensional numerical models were refined to predict reactive processes in disinfection contact tanks (CTs). The methodology departs from the traditional performance assessment of contact tanks via hydraulic efficiency indicators, as it simulates directly transport and decay of the disinfectant, inactivation of pathogens and accumulation of by-products. The method is applied to study the effects of inlet and compartment design on contact tank performance, with special emphasis on turbulent mixing and minimisation of internal recirculation and short-circuiting. In contrast to the conventional approach of maximising the length-to-width ratio, the proposed design changes are aimed at addressing and mitigating adverse hydrodynamic structures, which have historically led to poor hydraulic efficiency in many existing contact tanks. The results suggest that water treatment facilities can benefit from in-depth analyses of the flow and kinetic processes through computational fluid dynamics, resulting in up to 38 \\%\\ more efficient pathogen inactivation and 14 & less disinfection by-product formation.\n
\n\n\n
\n\n\n\n\n\n    
\n  
\n\n  
\n    
\n       \n      2015\n      \n        \n        (5)\n        \n      \n    
\n    
\n      \n  \n  
\n  \n\n  \n  \n  \n  \n  \n  Combined Potential and Impacts of Tidal Lagoons Along the North Wales Coast.\n  \n  \n  \n\n\n  \n  Angeloudis, A., Ahmadian, R., Falconer, R. A,  & Bockelmann-Evans, B.\n\n\n  \n\n\n\n  In 36th IAHR World Congress, pages 1–8, The Hague,  2015. \n  \n\n\n\n
\n\n\n\n  \n\n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n   \n  \n    abstract \n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n\n\n\n
\n  
@inproceedings{Angeloudis2015b,\nabstract = {The UK has some of the largest tidal ranges in the world with the potential for extensive renewable electricity generation. In the light of commitments to meet EU renewable energy targets, there is an emerging interest towards marine renewable energy schemes, seeking to harness the energy resource available from the high tidal ranges recorded around certain locations of the Welsh coastline. This study examines the combined far-and near-field impacts of multiple coastally attached tidal lagoons proposed along the North Wales coast. A two-dimensional numerical model, based on an unstructured triangular mesh, has been refined to simulate the hydrodynamic processes for some of the proposed coastally attached impoundments (or tidal lagoons). A validated finite volume method has been implemented to solve the 2D shallow water equations, based on a second-order accurate spatial and temporal numerical scheme. Details are given of the significant hydro-environmental aspects which must be taken into account when optimizing the design of such proposals. The operation of the tidal lagoons has a considerable effect on the hydrodynamics in the region, including significantly mitigating against flood risk in areas which were previously susceptible to coastal flooding. In the meantime, predicted electricity generated by the lagoon turbines highlights the potential of this untapped energy resource around Wales.},\naddress = {The Hague},\nauthor = {Angeloudis, A. and Ahmadian, R. and Falconer, R. A and Bockelmann-Evans, B.},\nbooktitle = {36th IAHR World Congress},\nfile = {:home/than/Dropbox/Thanasis{\\_}Backup/MyPapers/Combined{\\_}Potential{\\_}of{\\_}Tidal{\\_}Lagoons.pdf:pdf},\nkeywords = {marine renewable energy,numerical modelling,tidal lagoons,tidal range},\npages = {1--8},\ntitle = {{Combined Potential and Impacts of Tidal Lagoons Along the North Wales Coast}},\nyear = {2015}\n}\n\n
\n
\n\n\n
\n  The UK has some of the largest tidal ranges in the world with the potential for extensive renewable electricity generation. In the light of commitments to meet EU renewable energy targets, there is an emerging interest towards marine renewable energy schemes, seeking to harness the energy resource available from the high tidal ranges recorded around certain locations of the Welsh coastline. This study examines the combined far-and near-field impacts of multiple coastally attached tidal lagoons proposed along the North Wales coast. A two-dimensional numerical model, based on an unstructured triangular mesh, has been refined to simulate the hydrodynamic processes for some of the proposed coastally attached impoundments (or tidal lagoons). A validated finite volume method has been implemented to solve the 2D shallow water equations, based on a second-order accurate spatial and temporal numerical scheme. Details are given of the significant hydro-environmental aspects which must be taken into account when optimizing the design of such proposals. The operation of the tidal lagoons has a considerable effect on the hydrodynamics in the region, including significantly mitigating against flood risk in areas which were previously susceptible to coastal flooding. In the meantime, predicted electricity generated by the lagoon turbines highlights the potential of this untapped energy resource around Wales.\n
\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  Numerical modelling of a tidal lagoon along the North Wales coast.\n  \n  \n  \n\n\n  \n  Angeloudis, A., Ahmadian, R., Bockelmann-Evans, B.,  & Falconer, R. A.\n\n\n  \n\n\n\n  In Renewable Energies Offshore (RENEW2014) – Guedes Soares (Ed.) ©, pages 139–145, Lisbon,  2015. \n  \n\n\n\n
\n\n\n\n  \n\n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n   \n  \n    abstract \n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@inproceedings{Angeloudis2015a,\nabstract = {{\\textcopyright} 2015 Taylor {\\&} Francis Group, London.This study examines far- and near-field impacts of a coastally attached tidal lagoon proposed along the North Wales coast. A two-dimensional numerical model, based on an unstructured triangular mesh, has been refined to simulate the hydrodynamic processes, initially without and subsequently in the presence of a tidal lagoon. The model adopts a TVD finite volume method to solve the 2D shallow water equations based on a second-order accurate spatial and temporal numerical scheme. Results indicate a good performance in reproducing the established conditions encountered in the region through comparisons against available data. The operation of the tidal lagoon has a considerable effect on the flow structure near the region, by inducing high velocity accelerations near the sluices and turbines of the impoundment, depending on the stage of the tidal cycle. Considering an ebb-only generation, it is highlighted that such tidal lagoons can additionally mitigate the risk of coastal flooding by substantially reducing the maximum water levels on the upstream side of the structure.},\naddress = {Lisbon},\nauthor = {Angeloudis, A. and Ahmadian, R. and Bockelmann-Evans, B. and Falconer, R. A.},\nbooktitle = {Renewable Energies Offshore (RENEW2014) – Guedes Soares (Ed.) {\\textcopyright}},\nfile = {:home/than/Dropbox/Thanasis{\\_}Backup/MyPapers/RENEW2014{\\_}rev2.pdf:pdf},\nisbn = {9781138028715},\npages = {139--145},\ntitle = {{Numerical modelling of a tidal lagoon along the North Wales coast}},\nyear = {2015}\n}\n
\n
\n\n\n
\n  © 2015 Taylor & Francis Group, London.This study examines far- and near-field impacts of a coastally attached tidal lagoon proposed along the North Wales coast. A two-dimensional numerical model, based on an unstructured triangular mesh, has been refined to simulate the hydrodynamic processes, initially without and subsequently in the presence of a tidal lagoon. The model adopts a TVD finite volume method to solve the 2D shallow water equations based on a second-order accurate spatial and temporal numerical scheme. Results indicate a good performance in reproducing the established conditions encountered in the region through comparisons against available data. The operation of the tidal lagoon has a considerable effect on the flow structure near the region, by inducing high velocity accelerations near the sluices and turbines of the impoundment, depending on the stage of the tidal cycle. Considering an ebb-only generation, it is highlighted that such tidal lagoons can additionally mitigate the risk of coastal flooding by substantially reducing the maximum water levels on the upstream side of the structure.\n
\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  \n    Flow, transport and disinfection performance in small- and full-scale contact tanks.\n  \n  \n  \n  \n\n\n  \n  Angeloudis, A., Stoesser, T., Falconer, R. A.,  & Kim, D.\n\n\n  \n\n\n\n  Journal of Hydro-Environment Research, 9(1): 15–27.  2015.\n  \n\n\n\n
\n\n\n\n  \n  \n    \"Flow,Paper\n   \n  \n\n  \n  \n    doi\n   \n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n   \n  \n    abstract \n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n\n\n\n
\n  
@article{Angeloudis2015d,\nabstract = {The hydrodynamics and mixing processes in small- and full-scale baffled disinfection tanks are studied experimentally and numerically. Velocity and tracer transport measurements are carried out to quantify the hydrodynamics and to obtain reliable data used to validate a three-dimensional computational fluid dynamics (CFD) model. The flow in the tank under investigation is extensively three-dimensional due to the existing inlet condition of the tank, resulting in short-circuiting and internal recirculation, particularly in the first three compartments. Near the inlet the tracer residence time distribution curve analysis and Hydraulic Efficiency Indicators (HEIs) suggest poor disinfection performance. Further away from the inlet, the flow recovers to a two-dimensional flow and the HEIs improve until the exit of the tank. The computational results demonstrate good agreement between the predicted hydrodynamics and tracer transport with the corresponding experimental data. The numerical model is then employed to investigate the effects of up-scaling of laboratory model findings to a full-scale contact tank. Despite the Froude-Reynolds conflict the full-scale contact tank exhibits similar behaviour to the small-scale tank. The effect of the tank geometry on the disinfection efficiency is demonstrated, highlighting the negative impact of flow three-dimensionality on pathogen inactivation.},\nauthor = {Angeloudis, A. and Stoesser, T. and Falconer, R. A. and Kim, D.},\ndoi = {10.1016/j.jher.2014.07.001},\nfile = {:home/than/.local/share/data/Mendeley Ltd./Mendeley Desktop/Downloaded/Angeloudis et al. - 2015 - Flow, transport and disinfection performance in small- and full-scale contact tanks.pdf:pdf},\nissn = {15706443},\njournal = {Journal of Hydro-Environment Research},\nkeywords = {Disinfection tanks,Froude-Reynolds conflict,Hydraulic efficiency,Physical model,RANS modeling},\nnumber = {1},\npages = {15--27},\npublisher = {Elsevier B.V},\ntitle = {{Flow, transport and disinfection performance in small- and full-scale contact tanks}},\nurl = {http://dx.doi.org/10.1016/j.jher.2014.07.001},\nvolume = {9},\nyear = {2015}\n}\n
\n
\n\n\n
\n  The hydrodynamics and mixing processes in small- and full-scale baffled disinfection tanks are studied experimentally and numerically. Velocity and tracer transport measurements are carried out to quantify the hydrodynamics and to obtain reliable data used to validate a three-dimensional computational fluid dynamics (CFD) model. The flow in the tank under investigation is extensively three-dimensional due to the existing inlet condition of the tank, resulting in short-circuiting and internal recirculation, particularly in the first three compartments. Near the inlet the tracer residence time distribution curve analysis and Hydraulic Efficiency Indicators (HEIs) suggest poor disinfection performance. Further away from the inlet, the flow recovers to a two-dimensional flow and the HEIs improve until the exit of the tank. The computational results demonstrate good agreement between the predicted hydrodynamics and tracer transport with the corresponding experimental data. The numerical model is then employed to investigate the effects of up-scaling of laboratory model findings to a full-scale contact tank. Despite the Froude-Reynolds conflict the full-scale contact tank exhibits similar behaviour to the small-scale tank. The effect of the tank geometry on the disinfection efficiency is demonstrated, highlighting the negative impact of flow three-dimensionality on pathogen inactivation.\n
\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  Effect of Three-Dimensional Mixing Conditions on Water Treatment Reaction Processes.\n  \n  \n  \n\n\n  \n  Angeloudis, A., Stoesser, T., Gualtieri, C.,  & Falconer, R. A.\n\n\n  \n\n\n\n  In 36th IAHR World Congress, pages 1–7, The Hague,  2015. \n  \n\n\n\n
\n\n\n\n  \n\n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@inproceedings{Angeloudis:IAHR2015,\nauthor = {Angeloudis, A. and Stoesser, T. and Gualtieri, C. and Falconer, R. A.},\naddress = {The Hague},\nnumber = {July},\nbooktitle = {36th IAHR World Congress},\npages = {1--7},\ntitle = {{Effect of Three-Dimensional Mixing Conditions on Water Treatment Reaction Processes}},\nyear = {2015}\n}\n\n\n
\n
\n\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  Hydro-environmental modelling and assessment of tidal impoundments along the North Wales coast.\n  \n  \n  \n\n\n  \n  Angeloudis, A., Falconer, R. A.,  & Bockelmann-Evans, B.\n\n\n  \n\n\n\n  In . Cardiff,  2015.\n  Maren2 Final Conference\n\n\n\n
\n\n\n\n  \n\n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@incollection{Angeloudis:MAREN2-2015,\nauthor = {Angeloudis, A. and Falconer, R. A. and Bockelmann-Evans, B. },\nnote = {Maren2 Final Conference},\naddress = {Cardiff},\ntitle = {{Hydro-environmental modelling and assessment of tidal impoundments along the North Wales coast}},\nyear = {2015}\n}\n\n
\n
\n\n\n\n
\n\n\n\n\n\n    
\n  
\n\n  
\n    
\n       \n      2014\n      \n        \n        (3)\n        \n      \n    
\n    
\n      \n  \n  
\n  \n\n  \n  \n  \n  \n  \n  Disinfection kinetics in CFD modelling of solute transport in contact tanks.\n  \n  \n  \n\n\n  \n  Angeloudis, A., Stoesser, T.,  & Falconer, R. A.\n\n\n  \n\n\n\n  In 3rd IAHR Europe Congress, pages 1–10, Porto,  2014. \n  \n\n\n\n
\n\n\n\n  \n\n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@inproceedings{Angeloudis_IAHR2014,\nauthor = {Angeloudis, A. and Stoesser, T. and Falconer, R. A.},\nbooktitle = {3rd IAHR Europe Congress},\nfile = {:home/than/Papers/Publications/Disinfection{\\_}Kinetics{\\_}in{\\_}Contact{\\_}Tank{\\_}CFD{\\_}Simulations.pdf:pdf},\ntitle = {{Disinfection kinetics in CFD modelling of solute transport in contact tanks}},\nyear = {2014},\npages = {1--10},\naddress = {Porto},\n}\n
\n
\n\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  \n    Predicting the disinfection efficiency range in chlorine contact tanks through a CFD-based approach.\n  \n  \n  \n  \n\n\n  \n  Angeloudis, A., Stoesser, T.,  & Falconer, R. A.\n\n\n  \n\n\n\n  Water Research, 60: 118–129.  2014.\n  \n\n\n\n
\n\n\n\n  \n  \n    \"PredictingPaper\n   \n  \n\n  \n  \n    doi\n   \n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n   \n  \n    abstract \n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n\n\n\n
\n  
@article{Angeloudis2014e,\nabstract = {In this study three-dimensional computational fluid dynamics (CFD) models, incorporating appropriately selected kinetic models, were developed to simulate the processes of chlorine decay, pathogen inactivation and the formation of potentially carcinogenic by-products in disinfection contact tanks (CTs). Currently, the performance of CT facilities largely relies on Hydraulic Efficiency Indicators (HEIs), extracted from experimentally derived Residence Time Distribution (RTD) curves. This approach has more recently been aided with the application of CFD models, which can be calibrated to predict accurately RTDs, enabling the assessment of disinfection facilities prior to their construction. However, as long as it depends on HEIs, the CT design process does not directly take into consideration the disinfection biochemistry which needs to be optimized. The main objective of this study is to address this issue by refining the modelling practices to simulate some reactive processes of interest, while acknowledging the uneven contact time stemming from the RTD curves. Initially, the hydraulic performances of seven CT design variations were reviewed through available experimental and computational data. In turn, the same design configurations were tested using numerical modelling techniques, featuring kinetic models that enable the quantification of disinfection operational parameters. Results highlight that the optimization of the hydrodynamic conditions facilitates a more uniform disinfectant contact time, which correspond to greater levels of pathogen inactivation and a more controlled by-product accumulation. {\\textcopyright} 2014 Elsevier Ltd.},\nauthor = {Angeloudis, A. and Stoesser, T. and Falconer, R. A.},\ndoi = {10.1016/j.watres.2014.04.037},\nfile = {:home/than/.local/share/data/Mendeley Ltd./Mendeley Desktop/Downloaded/Angeloudis, Stoesser, Falconer - 2014 - Predicting the disinfection efficiency range in chlorine contact tanks through a CFD-based appro.pdf:pdf},\nisbn = {9788578110796},\nissn = {18792448},\njournal = {Water Research},\nkeywords = {Disinfection by-products,Disinfection tanks,Pathogen inactivation,RANS modeling,Residence time distribution},\npages = {118--129},\npmid = {24835958},\npublisher = {Elsevier Ltd},\ntitle = {{Predicting the disinfection efficiency range in chlorine contact tanks through a CFD-based approach}},\nurl = {http://dx.doi.org/10.1016/j.watres.2014.04.037},\nvolume = {60},\nyear = {2014}\n}\n
\n
\n\n\n
\n  In this study three-dimensional computational fluid dynamics (CFD) models, incorporating appropriately selected kinetic models, were developed to simulate the processes of chlorine decay, pathogen inactivation and the formation of potentially carcinogenic by-products in disinfection contact tanks (CTs). Currently, the performance of CT facilities largely relies on Hydraulic Efficiency Indicators (HEIs), extracted from experimentally derived Residence Time Distribution (RTD) curves. This approach has more recently been aided with the application of CFD models, which can be calibrated to predict accurately RTDs, enabling the assessment of disinfection facilities prior to their construction. However, as long as it depends on HEIs, the CT design process does not directly take into consideration the disinfection biochemistry which needs to be optimized. The main objective of this study is to address this issue by refining the modelling practices to simulate some reactive processes of interest, while acknowledging the uneven contact time stemming from the RTD curves. Initially, the hydraulic performances of seven CT design variations were reviewed through available experimental and computational data. In turn, the same design configurations were tested using numerical modelling techniques, featuring kinetic models that enable the quantification of disinfection operational parameters. Results highlight that the optimization of the hydrodynamic conditions facilitates a more uniform disinfectant contact time, which correspond to greater levels of pathogen inactivation and a more controlled by-product accumulation. © 2014 Elsevier Ltd.\n
\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  \n    Modelling of flow, transport and disinfection kinetics in contact tanks.\n  \n  \n  \n  \n\n\n  \n  Angeloudis, A., Stoesser, T., Kim, D,  & Falconer, R A\n\n\n  \n\n\n\n  Proc. ICE - Water Manag., 167(9): 532–546.  2014.\n  \n\n\n\n
\n\n\n\n  \n  \n    \"ModellingPaper\n   \n  \n\n  \n  \n    doi\n   \n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n   \n  \n    abstract \n  \n\n  \n   \n  \n    1 download\n  \n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n  \n  \n  \n  \n  \n  \n\n\n\n
\n  
@article{Angeloudis2014a,\nabstract = {Results are presented herein of a computational fluid dynamics (CFD) study of flow, transport processes and bacteria inactivation in contact tanks. Three-dimensional numerical simulations are conducted using a Reynolds Averaged Navier-Stokes equation approach. In a first step the CFD model is validated using data from a previously undertaken laboratory experimental study from which velocity and conservative tracer transport data were available for comparison. The good agreement between CFD and experimental data confirm that the model accurately reproduced the hydrodynamics and tracer transport processes. The analysis of the results yielded that the flow in the tank was extensively three-dimensionality which was attributed to the current inlet configuration. Hydraulic efficiency indicators and bacteria inactivation simulations confirmed that such a flow had a negative impact on the disinfection performance. The potential for tank optimization was examined via additional simulations, featuring varying inlet designs and a superior baffling configuration. The optimization approaches implemented remarkably enhanced the performance of the model, indicating a greater bacteria inactivation level for the same disinfectant dosage. Keywords},\nauthor = {Angeloudis, A. and Stoesser, T. and Kim, D and Falconer, R A},\ndoi = {10.1680/wama.13.00045},\nfile = {:home/than/.local/share/data/Mendeley Ltd./Mendeley Desktop/Downloaded/Angeloudis et al. - 2014 - Modelling of flow, transport and disinfection kinetics in contact tanks.pdf:pdf},\nissn = {1741-7589},\njournal = {Proc. ICE - Water Manag.},\nkeywords = {Hydraulics {\\{}{\\&}{\\}} Hydrodynamics,Mathematical Modelling,Water Supply chosen from list here.},\nnumber = {9},\npages = {532--546},\ntitle = {{Modelling of flow, transport and disinfection kinetics in contact tanks}},\nurl = {http://www.icevirtuallibrary.com/content/article/10.1680/wama.13.00045},\nvolume = {167},\nyear = {2014}\n}\n\n
\n
\n\n\n
\n  Results are presented herein of a computational fluid dynamics (CFD) study of flow, transport processes and bacteria inactivation in contact tanks. Three-dimensional numerical simulations are conducted using a Reynolds Averaged Navier-Stokes equation approach. In a first step the CFD model is validated using data from a previously undertaken laboratory experimental study from which velocity and conservative tracer transport data were available for comparison. The good agreement between CFD and experimental data confirm that the model accurately reproduced the hydrodynamics and tracer transport processes. The analysis of the results yielded that the flow in the tank was extensively three-dimensionality which was attributed to the current inlet configuration. Hydraulic efficiency indicators and bacteria inactivation simulations confirmed that such a flow had a negative impact on the disinfection performance. The potential for tank optimization was examined via additional simulations, featuring varying inlet designs and a superior baffling configuration. The optimization approaches implemented remarkably enhanced the performance of the model, indicating a greater bacteria inactivation level for the same disinfectant dosage. Keywords\n
\n\n\n
\n\n\n\n\n\n    
\n  
\n\n  
\n    
\n       \n      2013\n      \n        \n        (1)\n        \n      \n    
\n    
\n      \n  \n  
\n  \n\n  \n  \n  \n  \n  \n  CFD Study of Flow and Transport Characteristics in Baffled Disinfection Tanks.\n  \n  \n  \n\n\n  \n  Angeloudis, A., Stoesser, T., Kim, D.,  & Falconer, R. A.\n\n\n  \n\n\n\n  In 35th IAHR Congress, pages 1–7, Chengdu,  2013. \n  \n\n\n\n
\n\n\n\n  \n\n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n\n\n\n
\n  
@inproceedings{Angeloudis2013a,\naddress = {Chengdu},\nauthor = {Angeloudis, A. and Stoesser, T. and Kim, D. and Falconer, R. A.},\nbooktitle = {35th IAHR Congress},\nfile = {:home/than/Papers/Publications/CFD{\\_}Study{\\_}of{\\_}Flow{\\_}and{\\_}Transport{\\_}Characteristics{\\_}in{\\_}Baffled{\\_}Disinfection{\\_}Tanks{\\_}2.pdf:pdf},\ntitle = {{CFD Study of Flow and Transport Characteristics in Baffled Disinfection Tanks}},\npages = {1--7},\nyear = {2013}\n}\n
\n
\n\n\n\n
\n\n\n\n\n\n    
\n  
\n\n  
\n    
\n       \n      2012\n      \n        \n        (2)\n        \n      \n    
\n    
\n      \n  \n  
\n  \n\n  \n  \n  \n  \n  \n  Disinfection Contact Tanks : Contemporary Design and Modelling Considerations.\n  \n  \n  \n\n\n  \n  Angeloudis, A., Rauen, W. B.,  & Falconer, R. A.\n\n\n  \n\n\n\n  In 2nd IAHR Europe Congress, pages 1–8, Munich,  2012. \n  \n\n\n\n
\n\n\n\n  \n\n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n\n\n\n
\n  
@inproceedings{AngeloudisAthanasios2012,\naddress = {Munich},\nauthor = {Angeloudis, A. and Rauen, W. B. and Falconer, R. A.},\nbooktitle = {2nd IAHR Europe Congress},\nfile = {:home/than/Papers/Publications/Disinfection Contact Tanks{\\_}Contemporary Design and Modelling Considerations.pdf:pdf},\nkeywords = {cfd,chlorine contact tanks,disinfection by-products,water disinfection tanks,water treatment},\ntitle = {{Disinfection Contact Tanks : Contemporary Design and Modelling Considerations}},\npages = {1--8},\nyear = {2012}\n}\n\n
\n
\n\n\n\n
\n\n\n  
\n  \n\n  \n  \n  \n  \n  \n  \n    Appraisal of chlorine contact tank modelling practices.\n  \n  \n  \n  \n\n\n  \n  Rauen, W B, Angeloudis, A.,  & Falconer, R A\n\n\n  \n\n\n\n  Water Research, 46(18): 5834–5847.  2012.\n  \n\n\n\n
\n\n\n\n  \n  \n    \"AppraisalPaper\n   \n  \n\n  \n  \n    doi\n   \n  \n\n  \n  link\n   \n  \n\n  bibtex\n    \n\n  \n\n  \n\n  \n  \n  \n  \n  \n  \n  \n\n   \n  \n  \n  \n  \n  \n  \n  \n  \n  \n  \n\n\n\n
\n  
@article{Rauen2012,\nauthor = {Rauen, W B and Angeloudis, A. and Falconer, R A},\ndoi = {10.1016/j.watres.2012.08.013},\nissn = {1879-2448},\njournal = {Water Research},\nkeywords = {*Models, Theoretical,Chlorine/*analysis,Water Purification},\nnumber = {18},\npages = {5834--5847},\npmid = {22963866},\ntitle = {{Appraisal of chlorine contact tank modelling practices}},\nurl = {http://www.ncbi.nlm.nih.gov/pubmed/22963866{\\%}5Cnhttp://ac.els-cdn.com/S0043135412006008/1-s2.0-S0043135412006008-main.pdf?{\\_}tid=a7bc30c0-34d7-11e3-b96c-00000aab0f01{\\&}acdnat=1381758838{\\_}09b15e649800ca5df52ac12ce6ba0808{\\%}5Cnhttp://ac.els-cdn.com/S004313541200600},\nvolume = {46},\nyear = {2012}\n}\n\n\n
\n
\n\n\n\n
\n\n\n\n\n\n    
\n  
\n\n\n\n\n  
\n\n\n  \n\n  \n  \n  \n  \n\n
\n"}; document.write(bibbase_data.data);