Preliminary numerical study of three-temperature model investigation of hypersonic oxygen flow under rotational nonequilibrium
| Autor: | Rabah Haoui, A. Chpoun, Y. Ghezali |
|---|---|
| Přispěvatelé: | Université des Sciences et de la Technologie Houari Boumediene = University of Sciences and Technology Houari Boumediene [Alger] (USTHB), Laboratoire de Mécanique et d'Energétique d'Evry (LMEE), Université d'Évry-Val-d'Essonne (UEVE)-Université Paris-Saclay, University of Sciences and Technology Houari Boumediene [Alger] (USTHB) |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Shock wave
Thermal equilibrium Oxygen flow Nuclear and High Energy Physics Hypersonic speed Radiation Materials science Shock (fluid dynamics) Rotation Non-equilibrium thermodynamics 02 engineering and technology Mechanics Nonequilibrium [SPI.MECA]Engineering Sciences [physics]/Mechanics [physics.med-ph] Hypersonic 01 natural sciences Vibration 010305 fluids & plasmas 020303 mechanical engineering & transports 0203 mechanical engineering 0103 physical sciences Vibrational energy relaxation Shock tube Vibrational temperature |
| Zdroj: | Thermophysics and Aeromechanics Thermophysics and Aeromechanics, 2021, 27 (6), pp.869-872. ⟨10.1134/S0869864320060086⟩ Thermophysics and Aeromechanics, MAIK Nauka/Interperiodica, 2021, 27 (6), pp.869-872. ⟨10.1134/S0869864320060086⟩ |
| ISSN: | 0869-8643 1531-8699 |
| DOI: | 10.1134/S0869864320060086⟩ |
| Popis: | International audience; The effect of rotational nonequilibrium on the macroscopic parameters of the flow behind a normal shock wave in oxygen gas flow has been examined. The electron thermal equilibrium was taken into account where the electron temperature was equal to the vibrational temperature according to Park’s assumption. Therefore, only the effect of rotational nonequilibrium on the translational and vibrational temperature was analyzed. Rotational and vibrational relaxation time for the O2-O2 and O2-O collisions proposed recently by Andrienko and Boyd are used. Also, the O2 dissociation rates proposed by Kim and Park are used. The results obtained with the three-temperature model well reproduce the data obtained in shock tube for the shock velocity of 4.44 km/s. |
| Databáze: | OpenAIRE |
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