Research of Compressible Turbulence Model in Shock Wave/Boundary-Layer Interaction Flow at a Compression Corner

To study the problem of shockwave/boundary-layer interaction at a compression corner, variable density characteristics in compressible flow was taken into account. A new turbulence model CKD (Compressible Kinetic Dependent Only) was constructed by incorporating compressible Von Karman scale into KDO model(Kinetic Dependent Only). The shockwave/boundary-layer interaction was simulated by cases of 8°, 16°, 20° and 24° at a compression corner. The results show that, CKDO has advantages than others in capturing pressure and friction coefficient near the wall. With the angles of compression corner increase, the ability to describle the flow for CKDO become more prominent than others and continue to agree well with experiment. The size of separation zone for CKDO is only about 10% larger than experiment on 24° compression corner, obviously better than the other model results. It indicates that turbulence model CKDO has good performance in simulating the flows near the wall such as shockwave/boundary-layer interaction flow.