lnteraction of Turbulent Coherent Structures and Small Scale Structures

Liu Shihe; Liang Zaichao

Volume 16 Issue 12

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Article Navigation > Applied Mathematics and Mechanics > 1995 > 16(12): 1091-1099

Liu Shihe, Liang Zaichao. lnteraction of Turbulent Coherent Structures and Small Scale Structures[J]. Applied Mathematics and Mechanics, 1995, 16(12): 1091-1099.

Citation:

Liu Shihe, Liang Zaichao. lnteraction of Turbulent Coherent Structures and Small Scale Structures[J]. Applied Mathematics and Mechanics, 1995, 16(12): 1091-1099.

Citation:

Liu Shihe, Liang Zaichao. lnteraction of Turbulent Coherent Structures and Small Scale Structures[J]. Applied Mathematics and Mechanics, 1995, 16(12): 1091-1099.

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lnteraction of Turbulent Coherent Structures and Small Scale Structures

Wuhan University of Hydraulic and Electric Engineering, Wuhan 430072, P. R. China

Received Date: 1993-09-08
Publish Date: 1995-12-15

Abstract

Abstract

In this paper experimental research is carried out for the existence of large andsmall scale.structures in turbulent boundary layer and the interactions between these structures.Based on the experimental results,a new method is suggested to discribe the coherent strucures in which the interactions between between the coherent and small-scale slructures are considered,Using this method a new pattern recognition method is suggested and used for the coherent structures in turbulent boundary layer in smooth and rough well conditions.The results show that the suggested method is reasonable.
- coherent structures,
- small scale structures,
- turbulent

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References(9)

References

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[2]	P.R.Bandyopadhyay,The coupling between scales in shear flows,Phys.Fluids.20(1977).S243.
[3]	A.D.Whalen,《噪声中信号的检测》.科学出版社(1977),
[4]	梁在潮.《紊流力学》.河南科技出版社(1988),
[5]	蔡树棠、麻柏坤.大小涡旋分开考虑的模式理论.应用数学和力学.8(10)(1987).849-858,
[6]	梁在潮.相干结构与脉动壁压.水利学报.(8)(1985).
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