LAGRANGIAN VELOCITY AUTOCORRELATION AND EDDY VISCOSITY IN 2-DIMENSIONAL ANISOTROPIC TURBULENCE

被引：15

作者：

GOTOH, T ^{[1
]}

KANEDA, Y ^{[1
]}

机构：

[1] NAGOYA UNIV,DEPT APPL PHYS,CHIKUSA KU,NAGOYA 46401,JAPAN

来源：

PHYSICS OF FLUIDS A-FLUID DYNAMICS | 1991年 / 3卷 / 10期

关键词：

D O I：

10.1063/1.858181

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

A numerical study is made of the Lagrangian and Eulerian velocity autocorrelations R(L) and R(E), and the eddy viscosity nu-eddy in two-dimensional anisotropic turbulence with or without mean flow of simple shearing motion. A short-time analysis is made of R(L) and R(E) in anisotropic turbulence, and also of nu-eddy in initially isotropic turbulence. The Lagrangian renormalized approximation is numerically integrated to compute R(L) and nu-eddy, and the results are compared with direct numerical simulations.

引用

页码：2426 / 2437

页数：12

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