Aerodynamic characteristics of an element of surface washed by a high-speed free-molecular flow
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An analysis is presented of the dependence of local aerodynamic coefficients on the angle of attack for surfaces covered by an adsorbed layer, for a flow velocity of ≈10 km/sec. The analysis is based on comparison of coefficients calculated for diffuse reflection and experimental data on momentum transfer between the flow and the surface, and with the assumed quasispecular reflection in which the velocity of the reflected particles depends on the angle of attack. It is shown that the quasispecular case is a more accurate approximation in comparison with the diffuse case.
KeywordsExperimental Data Reflection Flow Velocity Accurate Approximation Momentum Transfer
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