VORTICAL SCALES FOR 2-DIMENSIONAL AND 3-DIMENSIONAL TURBULENCE

被引：7

作者：

NOVIKOV, EA

机构：

[1] Institute for Nonlinear Science, 0402, University of California, San Diego

来源：

PHYSICAL REVIEW E | 1994年 / 49卷 / 02期

关键词：

D O I：

10.1103/PhysRevE.49.R975

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

Correlation analysis of two-dimensional (2D) turbulence is performed on the basis of the Navier-Stokes equations. It is found that within the inertial range of scales (L Re-1/2 much less than r much less than L; L is the external scale, Re is the Reynolds number) there is a physically distinguished scale l(c) = L Re-1/4-a natural scale for coherent vortex patches. A hierarchy of vortical scales for 2D and 3D turbulence is found from a co-variance analysis of more detailed spatial structure of the vorticity field.

引用

页码：R975 / R977

页数：3

共 13 条

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