K-1416 Numerical Simulation for a mixing layer in supersonic flows

Abstract

In this study, a numerical calculation of supersonic-subsonic mixing layers is performed by solving the three dimensional compressible Navie-Storkes equations in the generalized coordinates. Calculations at convective Mach number of 0.52 suggest the existence of streamwise vortex tubes in the startially developing turbulent mixing layer. Also, a close relation between vorticity and pressure is noticed. The vortices reveal fairly stable behavior in a wide range of x direction.