Stagnation-Region Heating Environment of the Galileo Probe

The heating and ablating environment of the shock layer in the stagnation region of the Galileo probe is analyzed. Viscous shock-layer method is used assuming thermochemical equilibrium. Improvement is made to the existing methodology in calculating the equilibrium composition, radiation absorption in the vacuum ultraviolet wavelength range, and the effect of spallation. The calculated surface recession at the stagnation point agrees fairly closely with the flight data.

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