Calculations of Oblique Shock Wave/Turbulent Boundary-Layer Interactions With New Two-Equation Turbulence Models

摘要

Supersonic flows involving oblique shock wave/turbulent boundary-layer interactions are studied using the Favre-averaged Navier-Stokes equations and two recently developed k - epsilon, two-equation, eddy-viscosity models. The primary difference between these models and the existing k - epsilon model is that the new models satisfy the realizability constraints of the Reynolds stresses. Three cases with different levels of shock strength were calculated. The corresponding flows were observed to be attached, near incipient separation, and with large separation zone, respectively. The computed results are compared with surface measurements for all the cases and, for the last case, where there is a large region of flow separation, measured mean and turbulent kinetic energy profiles are also available for comparison. The results show reasonable agreement with the measurements.