Hypersonic Nonequilibrium Flow around Sharp Edge

Abstract

A regularized problem has been formulated to describe the flow of a molecular gas in a hypersonic macrokinetic nonequilibrium thin viscous shock layer (kinetic TVSL) near a sharp edge. It is shown that the solution of the regularized kinetic TVSL problem on the sharp edge, the description of friction and heat transfer coincides with the solution of the Navier–Stokes analogue of this TVSL problem. It is shown that in the kinetic TVSL the friction stress and the normal heat flow on the wall in the vicinity of the sharp edge are identical with the corresponding values in the Navier–Stokes TVSL. The similarity of currents near the sharp edge in the kinetic and Navier–Stokes versions of the TVSL is indicated. A method for constructing a solution to the kinetic TVSL problem for the vicinity of a sharp edge based on the Navier–Stokes TVSL solution is indicated. A formula is obtained for calculating the pressure on the surface in the kinetic TVSL flow near the sharp edge through the components of the solution (on the wall) of the Navier–Stokes TVSL flow problem.