On the Mechanism of Turbulent Coherent Structure(Ⅰ)——The Physical Model of the Coherent Structure for the Smooth Boundary Layer

Tsai Shu-tang; Liu Yu-lu

Volume 16 Issue 4

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Article Navigation > Applied Mathematics and Mechanics > 1995 > 16(4): 301-305

Tsai Shu-tang, Liu Yu-lu. On the Mechanism of Turbulent Coherent Structure(Ⅰ)——The Physical Model of the Coherent Structure for the Smooth Boundary Layer[J]. Applied Mathematics and Mechanics, 1995, 16(4): 301-305.

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On the Mechanism of Turbulent Coherent Structure(Ⅰ)——The Physical Model of the Coherent Structure for the Smooth Boundary Layer

Shanghai Institute of Applied Mathematics and Mechanics;Shanghai University, Shanghai, 200072

Received Date: 1994-05-17
Publish Date: 1995-04-15

Abstract

Abstract

In this paper, based on the discussion of properties of the turbulent coherent structure 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,which are in agreement with The experimental data^[3.4.5.7].
- turbulence theory,
- coherent structure,
- smooth boundary layer,

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References(8)

References

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[3]	Kline, S.J., et al.,The structure of turbulent boundary layers, J. Fluid Mech., 30(1967),741-773.
[4]	Kim, H. T., et. al.,The production of turbulence near a smooth wall in a turbulent boundary layer, J. Fluid Mech., 50 (1971),133-160.
[5]	Offen, G. R. and S.J. Kline, A proposed model of the bursting process in turbulent boundary layer, J. Fluid Mech., 70(1975), 209-228.
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