A priori, an extension of the SSG model on compressible turbulent flows

Several studies of compressible flows show that the pressure-strain is the main indicator of the structural compressibility effects. This term controls the change in the Reynolds stress anisotropy. The incompressible model of the pressure strain correlation proposed by Speziale Sarkar and Gatski shows a great success in simulating important incompressible flows. Thus, extension of this model on compressible flows is the main focus of this work. The standard coefficients SSG model become function of the turbulent Mach number. Applications of the compressibility correction SSG model in compressible homogeneous shear flow, show in general, that predictions of turbulence characteristic variables agree with the DNS results. Mots clefs : compressible, pressure-strain, models .