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Applied Mathematics and Mechanics (English Edition) ›› 2009, Vol. 30 ›› Issue (12): 1559-.doi: https://doi.org/10.1007/s10483-009-1207-z

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Numerical investigation on a transition prediction model

孙振旭1 赵晓利2 宋婧婧1 杜特专3   

  1. 1. State Key Laboratory for Turbulence and Complex Systems, College of Engineering, Peking University, Beijing 100871, P. R. China;
    2. School of Aerospace, Tsinghua University, Beijing 100084, P. R. China;
    3. Institute of Mechanics, Academia Sinica, Beijing 100190, P. R. China
  • 收稿日期:2009-05-05 修回日期:2009-10-26 出版日期:2009-12-23 发布日期:2009-12-01

Numerical investigation on a transition prediction model

SUN Zhen-Xu1, ZHAO Xiao-Li2, SONG Jing-Jing1, DU Te-Zhuan3   

  1. 1. State Key Laboratory for Turbulence and Complex Systems, College of Engineering, Peking University, Beijing 100871, P. R. China;
    2. School of Aerospace, Tsinghua University, Beijing 100084, P. R. China;
    3. Institute of Mechanics, Academia Sinica, Beijing 100190, P. R. China
  • Received:2009-05-05 Revised:2009-10-26 Online:2009-12-23 Published:2009-12-01

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摘要： A new transition prediction model is introduced, which couples the intermittency effect into the turbulence transport equations and takes the characteristics of fluid transition into consideration to mimic the exact process of transition. Test cases include a two-dimensional incompressible plate and a two-dimensional NACA0012 airfoil. Performance of this transition model for incompressible flows is studied, with numerical results consistent to experimental data. The requirement of grid resolution for this transition model is also studied.

关键词: transition, turbulent modeling, intermittency, grid resolution, skin friction

Abstract: A new transition prediction model is introduced, which couples the intermittency effect into the turbulence transport equations and takes the characteristics of fluid transition into consideration to mimic the exact process of transition. Test cases include a two-dimensional incompressible plate and a two-dimensional NACA0012 airfoil. Performance of this transition model for incompressible flows is studied, with numerical results consistent to experimental data. The requirement of grid resolution for this transition model is also studied.

Key words: transition, turbulent modeling, intermittency, grid resolution, skin friction

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