Determination of the radiative emission of a hypersonic flow simulating the Cassini-Titan atmospheric entry probe environment
The joint ESA-NASA Cassini mission includes the Huygens probe, which will penetrate the atmosphere of the Saturn moon Titan at around 5 km/sec. The radiative configuration of the shock layer is of a special interest because of the peculiar composition of the atmosphere and because non-equilibrium conditions are present over part of the trajectory: with the result that radiative heat transfer should be taken into account in the design of the heat shield. The present paper is a first report in which concentration of major species and values of thermophysical variables were computed as a function of distance behind a normal shock traveling at 5 km/sec into a simulated Titan atmosphere. A three temperature model was used with a suitable choice of chemical reactions among several species, and the associated rate constants.
AIAA, Fluid Dynamics, 21st Plasma Dynamics and Lasers Conference, 21st, Seattle, WA, June 18-20, 1990. 17 p.
- Pub Date:
- June 1990
- Atmospheric Entry Simulation;
- Hypersonic Flow;
- Radiative Heat Transfer;
- Satellite Atmospheres;
- Chemical Equilibrium;
- Nonequilibrium Thermodynamics;
- Oblique Shock Waves;
- Shock Layers;
- Fluid Mechanics and Heat Transfer