Other
Scientific paper
Jul 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992thph.confs....h&link_type=abstract
AIAA, Thermophysics Conference, 27th, Nashville, TN, July 6-8, 1992. 11 p.
Other
Aerobraking, Aerothermochemistry, Flow Distribution, Navier-Stokes Equation, Nonequilibrium Conditions, Radiation Transport, Algorithms, Iterative Solution, Lunar Trajectories, Mars (Planet), Return To Earth Space Flight
Scientific paper
Lunar and Mars return conditions are examined using the LAURA flowfield code and the LORAN 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 five meter diameter aerobrake returning from Mars at 13.6 km/sec.
Gnoffo Peter A.
Hartung Lin C.
Mitcheltree Robert A.
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