This work reports a numerical investigation of shock focusing phenomena over concave
surfaces. The study focuses on the effects of Reynolds and Mach numbers on the detailed
behavior of flow features related to shear-layer instabilities and jet formation in the post-
shock region. Computations are done for four incident-shock Mach numbers covering
subsonic and transonic flow regimes and a wide range of Reynolds numbers. The
simulations reveal a number of interesting wave features starting from early stage of shock …