Separated Flow Structure in the Reattachment Region in Supersonic Flow around Compression Corners of Various Configurations

Abstract

This paper presents the results of a computational and experimental study of the vortex structure in the reattachment region of a separated flow at a free-stream Mach number \({{{\text{M}}}_{\infty }} = 6\). Three configurations of the compression corner are considered: a compression corner formed by two flat surfaces, a same compression corner with side walls, and an axisymmetric model. The magnitude of the compression corner is the same in all cases and is 30\(^{ \circ }\). It has been established that the geometry of the model significantly influences the structure and parameters of the vortex flow in the reattachment zone, namely, the presence or absence of near-wall streamwise vortices of the Goertler type, their geometric dimensions, as well as the magnitude of the force and thermal parameters in the reattachment zone.