Transfer processes in a vibrationally excited gas
Abstract
Transfer processes in molecular gases are investigated in the case where the accumulated vibrational energy substantially exceeds the equilibrium value corresponding to the gas temperature. Such strongly nonequilibrium states occur naturally (e.g., nitrogen molecules in a perturbed upper earth atmosphere) and arise in many experimental studies dealing with electrical discharges, chemical reactions, and gas flows from orifices and nozzles. Here, transfer coefficients are calculated for a viscous diatomic gas with a real vibrational spectrum. The formulas proposed here can be used for calculating various nonequilibrium gas flows, including shock waves, nozzle and jet flows, and boundary layer flows.
- Publication:
-
Akademiia Nauk SSSR Sibirskoe Otdelenie Izvestiia Seriia Tekhnicheskie Nauki
- Pub Date:
- June 1990
- Bibcode:
- 1990SiSSR......128K
- Keywords:
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- Heat Transfer Coefficients;
- Molecular Gases;
- Vibrational Spectra;
- Gas Temperature;
- Nonequilibrium Conditions;
- Viscous Fluids;
- Thermodynamics and Statistical Physics