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Applied Mathematics and Mechanics (English Edition) ›› 1996, Vol. 17 ›› Issue (3): 197-203.

• 论文 •    下一篇

ON THE MECHANISM OF TURBULENT COHERENT STRUCTURE(II)──A PHYSICAL MODEL OF COHERENT STRUCTURE FOR THE ROUGH BOUNDARY LAYER

刘宇陆, 蔡树棠   

  1. Shanghai University: Shanghai Int. of Appl. Math. and Mech, Shanghai 200072, P. R. China
  • 收稿日期:1995-04-03 出版日期:1996-03-18 发布日期:1996-03-18
  • 基金资助:
    The project supported by the National Nature Science Foundation of China

ON THE MECHANISM OF TURBULENT COHERENT STRUCTURE(II)──A PHYSICAL MODEL OF COHERENT STRUCTURE FOR THE ROUGH BOUNDARY LAYER

Liu Yulu, Cai Shutang   

  1. Shanghai University: Shanghai Int. of Appl. Math. and Mech, Shanghai 200072, P. R. China
  • Received:1995-04-03 Online:1996-03-18 Published:1996-03-18
  • Supported by:
    The project supported by the National Nature Science Foundation of China

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摘要： In this paper, the differences of turbulent coherent structure beween the smooth and rough boundary lavers are analysed.Based on the discussing the transient properties from the smooth wall tothe rough wall,the physicalmodel of coherent structure for the rough boundary layer are established.The width of slwly-moving turbulent spot and the bursting time are obtained,which are in agreement with experimental results.

Abstract: In this paper, the differences of turbulent coherent structure beween the smooth and rough boundary lavers are analysed.Based on the discussing the transient properties from the smooth wall tothe rough wall,the physicalmodel of coherent structure for the rough boundary layer are established.The width of slwly-moving turbulent spot and the bursting time are obtained,which are in agreement with experimental results.

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