Assessment of hypersonic flow physics on aero-optics. Mackey, L., E. & Boyd, I., D. AIAA Journal, 57(9):3885-3897, American Institute of Aeronautics and Astronautics Inc., 7, 2019.
![Assessment of hypersonic flow physics on aero-optics [pdf]](https://bibbase.org/img/filetypes/pdf.svg "pdf")
Paper doi abstract bibtex 2 downloads
Paper doi abstract bibtex 2 downloads In a hypersonic environment, the high kinetic energy of the oncoming flow causes the molecules in the flow to be thermally excited, leadingto dissociation. In such a flow field, an aero-optical analysis that considers thermochemical nonequilibrium may be necessary to assist in sensor design. The present study assesses the optical properties of a nonequilibrium, real gas flow field around a hemisphere cylinder. The simulations are conducted at freestream Mach numbers of 11, 13, and 15. The optical distortions are quantified using optical path length and optical path difference. Optical distortion isalso predicted using a perfect gas assumption, and these distortions are provided for comparison. The primary contributions of nonequilibrium parameters on optical distortion are identified. For all Mach numbers, optical path lengths are higher when the effects of dissociation and vibrational relaxation are included. The computational results show that oxygen dissociation is the dominant nonequilibrium flow phenomena affecting the optical distortion. However, as the freestream Mach number increases, atomic nitrogen begins to have an additional influence on optical aberrations.
@article{
title = {Assessment of hypersonic flow physics on aero-optics},
type = {article},
year = {2019},
keywords = {Chemical Energy,Computational Fluid Dynamics Simulation,Energy Distribution,Freestream Mach Number,Gas Constant,Nonequilibrium Flows,Optical Properties,Optical Sensor,Stagnation Region,Stagnation Streamlines},
pages = {3885-3897},
volume = {57},
month = {7},
publisher = {American Institute of Aeronautics and Astronautics Inc.},
day = {14},
id = {47daec9e-07e9-3cb5-982f-ec70223d5b18},
created = {2021-05-31T22:40:22.447Z},
accessed = {2021-05-31},
file_attached = {true},
profile_id = {6476e386-2170-33cc-8f65-4c12ee0052f0},
group_id = {5a9f751c-3662-3c8e-b55d-a8b85890ce20},
last_modified = {2021-07-12T10:41:10.513Z},
read = {false},
starred = {false},
authored = {false},
confirmed = {false},
hidden = {false},
citation_key = {mackey:aj:2019},
private_publication = {false},
abstract = {In a hypersonic environment, the high kinetic energy of the oncoming flow causes the molecules in the flow to be thermally excited, leadingto dissociation. In such a flow field, an aero-optical analysis that considers thermochemical nonequilibrium may be necessary to assist in sensor design. The present study assesses the optical properties of a nonequilibrium, real gas flow field around a hemisphere cylinder. The simulations are conducted at freestream Mach numbers of 11, 13, and 15. The optical distortions are quantified using optical path length and optical path difference. Optical distortion isalso predicted using a perfect gas assumption, and these distortions are provided for comparison. The primary contributions of nonequilibrium parameters on optical distortion are identified. For all Mach numbers, optical path lengths are higher when the effects of dissociation and vibrational relaxation are included. The computational results show that oxygen dissociation is the dominant nonequilibrium flow phenomena affecting the optical distortion. However, as the freestream Mach number increases, atomic nitrogen begins to have an additional influence on optical aberrations.},
bibtype = {article},
author = {Mackey, Lauren E. and Boyd, Iain D.},
doi = {10.2514/1.J057869},
journal = {AIAA Journal},
number = {9}
}Downloads: 2
{"_id":"3YojMnvuPRQEy93Zk","bibbaseid":"mackey-boyd-assessmentofhypersonicflowphysicsonaerooptics-2019","author_short":["Mackey, L., E.","Boyd, I., D."],"bibdata":{"title":"Assessment of hypersonic flow physics on aero-optics","type":"article","year":"2019","keywords":"Chemical Energy,Computational Fluid Dynamics Simulation,Energy Distribution,Freestream Mach Number,Gas Constant,Nonequilibrium Flows,Optical Properties,Optical Sensor,Stagnation Region,Stagnation Streamlines","pages":"3885-3897","volume":"57","month":"7","publisher":"American Institute of Aeronautics and Astronautics Inc.","day":"14","id":"47daec9e-07e9-3cb5-982f-ec70223d5b18","created":"2021-05-31T22:40:22.447Z","accessed":"2021-05-31","file_attached":"true","profile_id":"6476e386-2170-33cc-8f65-4c12ee0052f0","group_id":"5a9f751c-3662-3c8e-b55d-a8b85890ce20","last_modified":"2021-07-12T10:41:10.513Z","read":false,"starred":false,"authored":false,"confirmed":false,"hidden":false,"citation_key":"mackey:aj:2019","private_publication":false,"abstract":"In a hypersonic environment, the high kinetic energy of the oncoming flow causes the molecules in the flow to be thermally excited, leadingto dissociation. In such a flow field, an aero-optical analysis that considers thermochemical nonequilibrium may be necessary to assist in sensor design. The present study assesses the optical properties of a nonequilibrium, real gas flow field around a hemisphere cylinder. The simulations are conducted at freestream Mach numbers of 11, 13, and 15. The optical distortions are quantified using optical path length and optical path difference. Optical distortion isalso predicted using a perfect gas assumption, and these distortions are provided for comparison. The primary contributions of nonequilibrium parameters on optical distortion are identified. For all Mach numbers, optical path lengths are higher when the effects of dissociation and vibrational relaxation are included. The computational results show that oxygen dissociation is the dominant nonequilibrium flow phenomena affecting the optical distortion. However, as the freestream Mach number increases, atomic nitrogen begins to have an additional influence on optical aberrations.","bibtype":"article","author":"Mackey, Lauren E. and Boyd, Iain D.","doi":"10.2514/1.J057869","journal":"AIAA Journal","number":"9","bibtex":"@article{\n title = {Assessment of hypersonic flow physics on aero-optics},\n type = {article},\n year = {2019},\n keywords = {Chemical Energy,Computational Fluid Dynamics Simulation,Energy Distribution,Freestream Mach Number,Gas Constant,Nonequilibrium Flows,Optical Properties,Optical Sensor,Stagnation Region,Stagnation Streamlines},\n pages = {3885-3897},\n volume = {57},\n month = {7},\n publisher = {American Institute of Aeronautics and Astronautics Inc.},\n day = {14},\n id = {47daec9e-07e9-3cb5-982f-ec70223d5b18},\n created = {2021-05-31T22:40:22.447Z},\n accessed = {2021-05-31},\n file_attached = {true},\n profile_id = {6476e386-2170-33cc-8f65-4c12ee0052f0},\n group_id = {5a9f751c-3662-3c8e-b55d-a8b85890ce20},\n last_modified = {2021-07-12T10:41:10.513Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {false},\n hidden = {false},\n citation_key = {mackey:aj:2019},\n private_publication = {false},\n abstract = {In a hypersonic environment, the high kinetic energy of the oncoming flow causes the molecules in the flow to be thermally excited, leadingto dissociation. In such a flow field, an aero-optical analysis that considers thermochemical nonequilibrium may be necessary to assist in sensor design. The present study assesses the optical properties of a nonequilibrium, real gas flow field around a hemisphere cylinder. The simulations are conducted at freestream Mach numbers of 11, 13, and 15. The optical distortions are quantified using optical path length and optical path difference. Optical distortion isalso predicted using a perfect gas assumption, and these distortions are provided for comparison. The primary contributions of nonequilibrium parameters on optical distortion are identified. For all Mach numbers, optical path lengths are higher when the effects of dissociation and vibrational relaxation are included. The computational results show that oxygen dissociation is the dominant nonequilibrium flow phenomena affecting the optical distortion. However, as the freestream Mach number increases, atomic nitrogen begins to have an additional influence on optical aberrations.},\n bibtype = {article},\n author = {Mackey, Lauren E. and Boyd, Iain D.},\n doi = {10.2514/1.J057869},\n journal = {AIAA Journal},\n number = {9}\n}","author_short":["Mackey, L., E.","Boyd, I., D."],"urls":{"Paper":"https://bibbase.org/service/mendeley/6476e386-2170-33cc-8f65-4c12ee0052f0/file/33a8cce0-d47c-e375-1d39-90937fbe7c0c/Mackey_Boyd___2019___Assessment_of_hypersonic_flow_physics_on_aero_optics.pdf.pdf"},"biburl":"https://bibbase.org/service/mendeley/6476e386-2170-33cc-8f65-4c12ee0052f0","bibbaseid":"mackey-boyd-assessmentofhypersonicflowphysicsonaerooptics-2019","role":"author","keyword":["Chemical Energy","Computational Fluid Dynamics Simulation","Energy Distribution","Freestream Mach Number","Gas Constant","Nonequilibrium Flows","Optical Properties","Optical Sensor","Stagnation Region","Stagnation Streamlines"],"metadata":{"authorlinks":{}},"downloads":2},"bibtype":"article","biburl":"https://bibbase.org/service/mendeley/6476e386-2170-33cc-8f65-4c12ee0052f0","dataSources":["nLJKf4csMDJ3MJCg9","ya2CyA73rpZseyrZ8","qwkM8ZucCwtxbnXfc","2252seNhipfTmjEBQ"],"keywords":["chemical energy","computational fluid dynamics simulation","energy distribution","freestream mach number","gas constant","nonequilibrium flows","optical properties","optical sensor","stagnation region","stagnation streamlines"],"search_terms":["assessment","hypersonic","flow","physics","aero","optics","mackey","boyd"],"title":"Assessment of hypersonic flow physics on aero-optics","year":2019,"downloads":2}