中文摘要：

用8个常用的湍流模型对Sajben扩压器中跨声速流动进行了数值模拟,评估了Spalart-Allmaras,标准k-ε,RNG（re-normalization group）k-ε,realizable k-ε,标准k-ω,SST（shear stress transport）k-ω,v-2-f,Reynolds stress共8个湍流模型对激波/湍流边界层相互作用的模拟预测能力.通过与实验数据比较发现：SSTk-ω模型和v-2-f模型比其他模型模拟的更准确,其中SSTk-ω模型比v-2-f更能准确地预测壁面压力,然而对于分离点、再附点以及分离区长度v-2-f比SSTk-ω预测得更准确.

英文摘要：

Eight turbulence models were employed in the detailed numerical investigations for transonic flows in the Sajben diffuser,so as to assess the predictive capabilities of the turbulence models for shock-wave/turbulent boundary layer interactions in internal flows,including the Spalart-Allmaras model,the standard k-ε model,the RNG （re-normalization group） k-ε model,the realizable k-ε model,the standard k-a model,the SST （shear stress transport） k-ω model,the v2-f model,and the Reynolds stress model.The performance of these different turbulence models was systematically assessed by comparing the numerical results with the available experimental data.The v2-f model and the SST k-ω model performed much better than other models,and the SST k-ω model predicted a little better than the v2-f model for pressure on walls,while v2-f model predicted a little better than the SST k-ω model for separation location,reattachment location and separation length in strong shock case.