Other
Scientific paper
Apr 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994jtht....8..244h&link_type=abstract
Journal of Thermophysics and Heat Transfer (ISSN 0887-8722), vol. 8, no. 2, p. 244-250
Other
2
Flow Distribution, Nonequilibrium Flow, Nonequilibrium Radiation, Radiation Effects, Thermal Radiation, Aerothermodynamics, Axisymmetric Flow, Computerized Simulation, Radiative Heat Transfer, Reaction Kinetics, Thermochemistry
Scientific paper
Lunar and Mars return conditions are examined using the Langley aerothermodynamic upwind relaxation algorithm flowfield code and the Langley optimized radiative nonequilibrium radiation code to assess the effect of radiative coupling on axisymmetric thermochemical nonequilibrium flows. Coupling of the two codes is achieved iteratively. Special treatment required to couple radiation in a shock-capturing method is discussed. Results indicate that while coupling effects are generally the same as occur in equilibrium flows, under certain conditions radiation can modify the chemical kinetics of a nonequilibrium flow, and thus alter relaxation processes. Coupling effects are found to be small for all cases considered, except for a 5 m diam aerobrake returning from Mars at 13.6 km/s.
Gnoffo Peter A.
Hartung Lin C.
Mitcheltree Robert A.
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