Instantaneous Pressure Measurements from Large-Scale Tomo-PTV with HFSB Tracers past a Surface-Mounted Finite Cylinder. Schneiders, J., Caridi, G., C., A., Sciacchitano, A., & Scarano, F. In 54th AIAA Aerospace Sciences Meeting, 4, 2016. American Institute of Aeronautics and Astronautics. ![Instantaneous Pressure Measurements from Large-Scale Tomo-PTV with HFSB Tracers past a Surface-Mounted Finite Cylinder [link]](https://bibbase.org/img/filetypes/link.svg "link")
Website doi abstract bibtex 2 downloads © 2016, American Institute of Aeronautics and Astronautics Inc, AIAA . All rights reserved. Instantaneous and time-resolved pressure is evaluated in a 6-liter measurement volume by making use of tomographic PTV with Helium-filled soap bubbles (HFSB) as tracers. This volume is two orders of magnitude larger than conventional tomographic experiments. The experiment considers the near-wake of a surface mounted cylinder (Re D = 3.6×10 4 ), which is highly unsteady and fully three-dimensional. Pressure is calculated from the tomographic velocity measurement by invoking the incompressible momentum equation. The time-averaged, RMS and instantaneous pressure is validated against simultaneous and independent pressure measurements made by pressure transducers in the surface. The mean and RMS pressure is in good correspondence to the reference measurements. Cross-correlation of the instantaneous pressure time-series with the reference measurement signal yields a cross-correlation coefficient peak value of 0.6. The present study shows that instantaneous pressure can be measured non-intrusively in a large measurement volume by making use of tomographic PTV with HFSB as tracers, which allows significantly reduced model complexity as the use of pressure transducers is avoided.
@inproceedings{
title = {Instantaneous Pressure Measurements from Large-Scale Tomo-PTV with HFSB Tracers past a Surface-Mounted Finite Cylinder},
type = {inproceedings},
year = {2016},
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abstract = {© 2016, American Institute of Aeronautics and Astronautics Inc, AIAA . All rights reserved. Instantaneous and time-resolved pressure is evaluated in a 6-liter measurement volume by making use of tomographic PTV with Helium-filled soap bubbles (HFSB) as tracers. This volume is two orders of magnitude larger than conventional tomographic experiments. The experiment considers the near-wake of a surface mounted cylinder (Re D = 3.6×10 4 ), which is highly unsteady and fully three-dimensional. Pressure is calculated from the tomographic velocity measurement by invoking the incompressible momentum equation. The time-averaged, RMS and instantaneous pressure is validated against simultaneous and independent pressure measurements made by pressure transducers in the surface. The mean and RMS pressure is in good correspondence to the reference measurements. Cross-correlation of the instantaneous pressure time-series with the reference measurement signal yields a cross-correlation coefficient peak value of 0.6. The present study shows that instantaneous pressure can be measured non-intrusively in a large measurement volume by making use of tomographic PTV with HFSB as tracers, which allows significantly reduced model complexity as the use of pressure transducers is avoided.},
bibtype = {inproceedings},
author = {Schneiders, Jan and Caridi, Giuseppe Carlo Alp and Sciacchitano, Andrea and Scarano, Fulvio},
doi = {10.2514/6.2016-1048},
booktitle = {54th AIAA Aerospace Sciences Meeting}
}
Downloads: 2
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