Control of hypersonic aerodynamic forces with surface blowing

Abstract

Pressure forces are derived for laminar flow past a thin wedge at high Mach number and high Reynolds number, with mass added at the surface according to a power-law velocity distribution strong enough that the boundary layer is blown away from the wall as a free shear layer. Self-similar solutions are obtained for the thin layer of blown gas adjacent to the surface, for the thin viscous shear layer, and for the outer inviscid-flow region between the shear layer and the shock wave. Pressures obtained in the strong- and weak-interaction regions are joined by a simple interpolation formula