Shear effects in nonhomogeneous turbulence

被引：49

作者：

Toschi, F

Lévêque, E

Ruiz-Chavarria, G

机构：

[1] Univ Twente, Dept Appl Phys, NL-7500 AE Enschede, Netherlands

[2] INFM, Unita Tor Vergata, Rome, Italy

[3] Ecole Normale Super Lyon, CNRS, Phys Lab, F-69364 Lyon 07, France

[4] Univ Nacl Autonoma Mexico, Fac Ciencias, Dept Fis, Mexico City 04510, DF, Mexico

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 85卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.85.1436

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Motivated by recent experimental and numerical results, a simple unifying picture of intermittency in turbulent shear flows is suggested. Integral structure functions (ISF), taking into account explicitly the shear intensity, are introduced on phenomenological grounds. ISF can exhibit a universal scaling behavior, independent of the shear intensity. This picture is in satisfactory agreement with both experimental and numerical data. Possible extension to convective turbulence and implication on closure conditions for large-eddy simulation of nonhomogeneous flows are briefly discussed.

引用

页码：1436 / 1439

页数：4

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