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中国科学院大学学报 ›› 2004, Vol. 21 ›› Issue (4): 454-461.DOI: 10.7523/j.issn.2095-6134.2004.4.005

• 论文 • 上一篇    下一篇

模拟跨声速湍流的线性和非线性涡粘性湍流模式(英文)

杨晓东, 马晖扬   

  1. 中国科学院研究生院, 北京 100039
  • 发布日期:2004-07-10
  • 通讯作者: 马晖扬,Email:hyma@163bj.Com
  • 基金资助:

    theNationalNaturalScienceFoundationofChina(90205002)

Modelling of Turbulent Transonic Flows withLinear and Nonlinear Eddy2ViscosityTurbulence Models

YANG Xiao-Dong, MA Hui-Yang   

  1. Graduate School of the Chinese Academy of Sciences, Beijing 100039, China
  • Published:2004-07-10

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.

关键词: 跨声速流, 湍流模式, 涡粘性

Abstract:

The predictive performance of linear and nonlinear eddy2viscosity turbulence models for homo-geneous shear flow and two transonic flows is presented. Three linear models are: k2E model of Shih &Lumley, CMOTT and SST model.Two nonlinear models are: the quadratic model of Shih, Zhu& Lumleyand the cubic model of Shih, et al.. The benchmark flows are two transonic flows over bump geometrieswith shock-wavePboundary2layer interaction including separation. The computational results demonstratethe superior performance of nonlinear models over the linear models.

Key words: transonic flows, turbulence models, eddy2viscosity

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