Differential Reynolds stress model for shock & separated flow

While models based on the Boussinesq eddy-viscosity approximation provide different predictions for flows like shock and separated flow which differ greatly from corresponding measurements. A model based on full Reynolds-stress equation called Differential Reynolds Stress Models (DRSM) will be presented in this paper. Compressibility modification and an improved dissipation rate equation are accounted to improve a realizable model for real compressible flow, two groups of Closure Coefficients of SSG pressure strain model were tested. DRSM performs well when applying to the ONERA-M6-Wing at subsonic speeds at high angle of attack, especially the accuracy of the shock location and flow separation.