Transport properties associated with entry into the atmosphere of Titan

Details Transport properties associated with entry into the atmosphere of Titan Transport properties associated with entry into the atmosphere of Titan

Jan 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981aiaa.meetr....f&link_type=abstract

American Institute of Aeronautics and Astronautics, Aerospace Sciences Meeting, 19th, St. Louis, Mo., Jan. 12-15, 1981, 8 p.

Astronomy and Astrophysics

Astronomy

Atmospheric Entry, Kinetic Theory, Satellite Atmospheres, Thermal Conductivity, Titan, Transport Properties, Methane, Nitrogen, Shock Fronts, Shock Layers, Stagnation Point, Stagnation Temperature, Two Body Problem, Viscosity

Scientific paper

In this paper the transport properties in the atmosphere of Titan and at the shock front and the probe surface for non-ablative entry into Titan's atmosphere are calculated, using the kinetic theory of gases. The species N2, H2, CH4, HCN, N, and H contribute to the transport properties under these conditions. The transport properties were calculated by using accurate potential energy curves for each of the thirteen two-body interactions which occur between these species. Results are given for the binary diffusion coefficients, the non-reactive and reactive thermal conductivity, and the viscosity from 1000 K to 8000 K. This information is needed for calculating flowfield properties and surface heating rates. The most important conclusions are that the non-reactive thermal conductivity is much larger behind the shock layer than it is in the ambient atmosphere and that the nonreactive thermal conductivity appears to be nearly constant in the shock layer.

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