Flowfield Surveys and Computations of a Crossing-Shock Wave/Boundary-Layer Interaction

摘要

A joint experimental and computational study has been performed to investigate the flowfield structure created by two crossing oblique shock waves interacting with a turbulent boundary layer. Such an interaction is of practical importance in the design of high-speed sidewall-compression inlets. The interaction is created by a test model, consisting of two sharp fins mounted at 15-deg angle of attack to a fiat plate, placed in a Mach 3.85 freestream flow with a unit Reynolds number of 76 x 10~6/m. Two computational solutions, one using a Baldwin-Lomax algebraic turbulent eddy viscosity model and one using a modified K-E (Rodi) turbulence model, are compared with experimental flowfield data obtained from a fast-response five-hole probe.