Aerobraking in a dusty Martian atmosphere

Details Aerobraking in a dusty Martian atmosphere Aerobraking in a dusty Martian atmosphere

Jun 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990jtht.confq....c&link_type=abstract

AIAA and ASME, Joint Thermophysics and Heat Transfer Conference, 5th, Seattle, WA, June 18-20, 1990. 14 p.

Physics

Aerobraking, Dust Storms, Mars Atmosphere, Noses (Forebodies), Shock Layers, Erosion, Flow Distribution, Spacecraft Shielding, Stagnation Point, Thermal Protection

Scientific paper

The effects of dust particle impacts on the erosion of the heat shield were estimated for a 26 m diameter aerobraking vehicle entering the Mars atmosphere at 8.6 km/sec. An explicit Navier-Stokes code was used to compute the flow field about the vehicle for the actual Martian atmospheric composition at a speed of 7.5 km/sec. The deceleration and melting of the dust particles within the forebody shock-layer was computed for dust spherules having initial diameters from 3 to 10 microns. Two heat shield materials were considered: Shuttle tiles with glassy surfaces and a low-density ablator known as Avcoat.

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