Applied Mathematics and Mechanics (English Edition) ›› 1995, Vol. 16 ›› Issue (4): 319-323.

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ON THE MECHANISM OF TURBULENT COHERENT STRUCTURE (I)──THE PYSICAL MODEL OF THE COHERENT STRUCTURE FOR THE SMOOTH BOUNDARY LAYER

Tsai shu-tang, Liu Yu-lu   

  1. Shanghai University:Shanghai Institute of Applied Mathematicsand Mechanics, Shanghai, 200072. P. R. China
  • Received:1994-05-17 Online:1995-04-18 Published:1995-04-18
  • Supported by:

    Project supported by the National Natural Science Foundation of China

Abstract: In this paper. based on the discussion of properties of the turbulent coherentstructure for smooth boumdary layer. a physical model has been established. The widthof slowly-moving streak line and bursting time of coherent structure expressed bymomentum thickness Reynolds mumber of boundary layer layer have been obtained,whichare in agreement with The experimental data[3.4.5.7]

Key words: turbulence theory, coherent structure, smooth boundary layer

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