| 模拟跨声速湍流的线性和非线性涡粘性湍流模式 |
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| 引用本文： | 杨晓东,马晖扬.模拟跨声速湍流的线性和非线性涡粘性湍流模式[J].中国科学院研究生院学报,2004,21(4):454-461. |
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| 作者姓名： | 杨晓东 马晖扬 |
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| 作者单位： | 中国科学院研究生院,北京,100039 |
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| 基金项目： | theNationalNaturalScienceFoundationofChina( 90 2 0 5 0 0 2 ) |
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| 摘 要： | 讨论应用线性和非线性涡粘性湍流模式计算跨声速湍流 .用于比较的 3个线性湍流模式是Shih和Lumley的k ε模式 ,CMOTT模式和SST模式 .2个非线性模式是Shih ,Zhu和Lumleyd的二阶模式 ,以及Shih等的三阶模式 .计算的典型流动是绕凸起的跨声速流动 ,该流动的特征是激波与边界层相互作用且伴有流动分离 .计算结果表明非线性湍流模式具有明显的优势 .
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| 关 键 词： | 跨声速流 湍流模式 涡粘性 |
Modelling of Turbulent Transonic Flows with Linear and Nonlinear Eddy-Viscosity Turbulence Models |
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| Abstract.Modelling of Turbulent Transonic Flows with Linear and Nonlinear Eddy-Viscosity Turbulence Models[J].Journal of the Graduate School of the Chinese Academy of Sciences,2004,21(4):454-461. |
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| Authors: | Abstract |
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| Abstract: | The predictive performance of linear and nonlinear eddy-viscosity turbulence models for homogeneous shear flow and two transonic flows is presented. Three linear models are:k-ε model of Shih & Lumley, CMOTT and SST model. Two nonlinear models are: the quadratic model of Shih,Zhu & Lumley and the cubic model of Shih, et al.. The benchmark flows are two transonic flows over bump geometries with shock-wave/boundary-layer interaction including separation. The computational results demonstrate the superior performance of nonlinear models over the linear models. |
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| Keywords: | transonic flows turbulence models eddy-viscosity |
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