Study of the Shock Wave Structure about a Body Entering the Martian Atmosphere

Details Study of the Shock Wave Structure about a Body Entering the Martian Atmosphere Study of the Shock Wave Structure about a Body Entering the Martian Atmosphere

May 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aipc..663..481i&link_type=abstract

RAREFIED GAS DYNAMICS: 23rd International Symposium. AIP Conference Proceedings, Volume 663, pp. 481-488 (2003).

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Shock Wave Interactions And Shock Effects, Nonequilibrium Gas Dynamics, Aerodynamics

Scientific paper

The flow structure along the stagnation line for a blunted body descending in the Martian atmosphere was simulated by the DSMC method for Knudsen numbers ranging from 10-2 to 10-3. Along with the conventional continuous approach for translational-internal energy transfer and chemical reactions, the new discrete internal energy model with corrected reaction rates was used in the computations. The impact of chemical reactions on the structure of the shock-wave front was examined. The nonequilibrium inside the bow shock was studied both in terms of macroparameters and distribution functions of translational, rotational, and vibrational energy modes. It is shown that vibrational relaxation and chemical reactions have a significant effect on the structure of the shock-wave front.

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