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TsAGI Science Journal

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ISSN Печать: 1948-2590

ISSN Онлайн: 1948-2604

HYPERSONIC NONEQUILIBRIUM FLOW OVER FLAT BUTT

Том 47, Выпуск 4, 2016, pp. 389-395
DOI: 10.1615/TsAGISciJ.2016018426
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Краткое описание

The two-dimensional problem of translational nonequilibrium flow of a monoatomic gas in the hypersonic shock layer near a flat butt is studied. Grad's 13 moment equations, which have a kinetic origin and enable significant deviation from the equilibrium flow to be considered, are used. The gas-dynamic model of the flow is a two-layer approximation of the thin viscous shear layer near the non-thin bodies. A mathematical model of the flow is proposed that gives the possibility of solving the kinetic problem based on the known solution to the Navier–Stokes problem. It is shown that the solutions to both problems totally coincide in the spreading plain of the shock layer. The friction stresses and heat fluxes on the wall in both cases are shown to be identical not only along the spreading lines but also over the whole butt surface.

Последний выпуск

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