| Sajben扩压器复杂流动中湍流模型的性能评估 |
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| 引用本文： | 吴佳诺,陆利蓬,柳阳威.Sajben扩压器复杂流动中湍流模型的性能评估[J].航空动力学报,2017,32(5):1216-1223. |
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| 作者姓名： | 吴佳诺 陆利蓬 柳阳威 |
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| 作者单位： | 北京航空航天大学 能源与动力工程学院 航空发动机气动热力国家级重点实验室，北京 100191；先进航空发动机协同创新中心，北京 100191 |
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| 基金项目： | 国家自然科学基金（51420105008, 51376001, 51676007） |
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| 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，v2-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:SST k-ω模型和v2-f模型比其他模型模拟的更准确，其中SST k-ω模型比v2-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v2-f比SST k-ω预测得更准确.
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| 关 键 词： | 跨声速流动 激波/湍流边界层相互作用 Sajben扩压器 湍流模型 计算流体动力学（CFD） |
| 收稿时间： | 2015/8/25 0:00:00 |
Performance evaluation of turbulence models for complex flows in Sajben diffuser |
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| Abstract: | 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. |
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| Keywords: | transonic flow shock wave/turbulent boundary layer interaction Sajben diffuser turbulence model computational fluid dynamics(CFD) |
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