A new method for computing laminar-turbulent transition and turbulence in compressible boundary layers—PSE+DNS

被引:2
作者
Ming Dong
Yong-ming Zhang
Heng Zhou
机构
[1] Tianjin University,Department of Mechanics
[2] Tianjin Key Laboratory of Modern Engineering Machanics,School of Mechanical Engineering
[3] Tianjin University,undefined
来源
Applied Mathematics and Mechanics | 2008年 / 29卷
关键词
transition; turbulence; parabolized stability equations; direct numerical simulations; O357; 76F65;
D O I
暂无
中图分类号
学科分类号
摘要
A new method for computing laminar-turbulent transition and turbulence in compressible boundary layers is proposed. It is especially useful for computation of laminar-turbulent transition and turbulence starting from small-amplitude disturbances. The laminar stage, up to the beginning of the breakdown in laminar-turbulent transition, is computed by parabolized stability equations (PSE). The direct numerical simulation (DNS) method is used to compute the transition process and turbulent flow, for which the inflow condition is provided by using the disturbances obtained by PSE method up to that stage. In the two test cases including a subsonic and a supersonic boundary layer, the transition locations and the turbulent flow obtained with this method agree well with those obtained by using only DNS method for the whole process. The computational cost of the proposed method is much less than using only DNS method.
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页码:1527 / 1534
页数:7
相关论文
共 6 条
  • [1] Zhang Y.(2007)Verification of parabolized stability equations for its application to compressible boundary layers[J] Applied Mathematics and Mechanics 28 987-998
  • [2] Zhou H.(2008)PSE as applied to problems of secondary instability in supersonic boundary layers[J] Applied Mathematics and Mechanics 29 1-8
  • [3] Zhang Y.(2008)PSE as applied to problems of transition in compressible boundary layers[J] Applied Mathematics and Mechanics 29 833-840
  • [4] Zhou H.(undefined)undefined undefined undefined undefined-undefined
  • [5] Zhang Y.(undefined)undefined undefined undefined undefined-undefined
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