Effects of multicomponent diffusion in a high-temperature gas-dynamics problem

Physics

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Gas Dynamics, Gaseous Diffusion, Helium Hydrogen Atmospheres, High Temperature Gases, Hypersonic Flow, Space Probes, Atmospheric Models, Convective Heat Transfer, Heat Transfer Coefficients, Jupiter Atmosphere, Plasma Layers, Radiative Heat Transfer, Separated Flow, Shock Layers, Shock Waves

Scientific paper

Hypersonic flow past a space probe in a helium-hydrogen atmosphere modeling the upper layers of Jupiter is investigated, with allowance made for the interaction of the principal physical processes in the shock layer plasma between a separated shock wave and the graphite surface of the spherical probe in determining the convective and radiant flows at the front critical point of the probe. The approach used here employs effective transfer coefficients describing mass flows of chemical elements and the convective heat flow. This approach makes it possible to determine the dependence of heat flows, mass flows of the chemical elements, and profiles of the gasdynamic parameters on the extent to which the diffusion processes in the shock layer are taken into account.

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