Computer Science
Scientific paper
May 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990stin...9025290h&link_type=abstract
Unknown
Computer Science
Aerobraking, Atmospheric Entry, Blunt Bodies, Flow Distribution, Heating, Mars Atmosphere, Carbon Dioxide, Dissipation, Dissociation, Inviscid Flow, Shock Layers, Stagnation Point, Trajectories
Scientific paper
Studies currently underway for Mars missions often envision the use of aerobraking for orbital capture at Mars. These missions generally involve blunt-nosed vehicles to dissipate the excess energy of the interplanetary transfer. Radiative heating may be of importance in these blunt-body flows because of the highly energetic shock layer around the blunt nose. In addition, the Martian atmosphere contains CO2, whose dissociation products are known to include strong radiators. An inviscid, equilibrium, stagnation point, radiation-coupled flow-field code has been developed for investigating blunt-body atmospheric entry. The method has been compared with ground-based and flight data for air, and reasonable agreement has been found. In the present work, the method was applied to a matrix of conditions in the Martian atmosphere. These conditions encompass most trajectories of interest for Mars exploration spacecraft. The predicted equilibrium radiative heating to the stagnation point of the vehicle is presented.
Brauns Frank
Hartung Lin C.
Sutton Kenneth
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