Turbulence model assessment for shock wave/turbulent boundary-layer interaction in transonic and supersonic flows

Comparisons of the performance of several state-of-the-art low-Reynolds num ber turbulence models in the prediction of shock wave/turbulent boundary-la yer interactions in transonic and supersonic flows are reported in this pap er. The models include a realizable k-epsilon model, a k-epsilon/k-omega hy brid model, and a one-equation nu(t) model. Several flow experiments focuse d on the shock wave/turbulent boundary-layer interaction phenomena are chos en for model comparisons. The selected flows represent a range of flow cond itions with the turbulent boundary layers being fully attached, incipiently separated, or displaying large region of flow separation. Care has been ta ken to obtain solutions on sufficiently refined grids in all calculations. The model predictions are compared with experimental data and with the resu lts obtained using Chien's low-Reynolds number model. The results show that the models tested provide improvements over Chien's model in the predictio ns of shock wave/turbulent interactions. (C) 2000 Elsevier Science Ltd. All rights reserved.