Experimental studies of radiative base heating of a Jovian entry model

Details Experimental studies of radiative base heating of a Jovian entry model Experimental studies of radiative base heating of a Jovian entry model

Jan 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979aiaa.meetz....s&link_type=abstract

American Institute of Aeronautics and Astronautics, Aerospace Sciences Meeting, 17th, New Orleans, La., Jan. 15-17, 1979, 12 p.

Astronomy and Astrophysics

Astronomy

Atmospheric Entry, Base Heating, Gas Giant Planets, Planetary Atmospheres, Radiative Heat Transfer, Shock Tubes, Base Flow, Calibrating, Heat Flux, Mach Number, Radiometers, Scale Models, Stagnation Point, Tables (Data)

Scientific paper

A scale model of the Jovian entry vehicle of 6.4 cm diameter is tested in an electric-arc-driven shock tube while a sphere model of 5 cm diameter is tested in a combustion-driven shock tube and an electric-arc-driven shock tunnel. The radiative heat-transfer rate and pressure on the front and the base regions are measured in the absence of ablation with sensors imbedded in the models in a stream consisting of 10% hydrogen in a bath of either neon or argon. The measured radiative heat-transfer rates and pressures are up to about 22 kW/sq cm and 12 atm, respectively, at the front stagnation point. The ratio of the base-to-stagnation-point radiative heat-transfer rates is found to be about 1/4 for the sphere at Mach 1.8, about 1/30 for the sphere at Mach 4.8, and about 1/6 for the scale model at Mach 1.7. When the effects of model geometry and Mach number are accounted for, the present experimental results agree well with the theoretical prediction of Park.

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