Computer Science
Scientific paper
Dec 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aipc.1084..831k&link_type=abstract
RARIFIED GAS DYNAMICS: Proceedings of the 26th International Symposium on Rarified Gas Dynamics. AIP Conference Proceedings, Vol
Computer Science
Supersonic And Hypersonic Flows, Kinetic And Transport Theory Of Gases, Rarefied Gas Dynamics
Scientific paper
The paper deals with the numerical simulation of a supersonic viscous flow containing CO2 molecules near a space body entering the Mars atmosphere. The gas dynamic equations in a shock layer are coupled to the equations of vibrational and chemical kinetics in the mixture CO2/CO/O2/C/O using three theoretical models for CO2 vibrational excitation. Three-temperature and two-temperature non-equilibrium approaches as well as the one-temperature thermal equilibrium model have been applied. A comparison of gas flow parameters and heat transfer calculated on the basis of different approximations is presented, and the effect of CO2 vibrational non-equilibrium is discussed. Transport coefficients in a flow are computed using rigorous kinetic theory algorithms which have been incorporated directly to the numerical schemes. The effect of bulk viscosity in a shock layer is studied.
Kustova Elena V.
Nagnibeda Ekaterina A.
Shevelev Yu. D.
Syzranova N. G.
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