THE DISSIPATION-RANGE SPECTRUM AND THE VELOCITY-DERIVATIVE SKEWNESS IN TURBULENT FLOWS

被引：40

作者：

SMITH, LM

REYNOLDS, WC

机构：

[1] Center for Turbulence Research, Stanford University, Stanford

来源：

PHYSICS OF FLUIDS A-FLUID DYNAMICS | 1991年 / 3卷 / 05期

关键词：

D O I：

10.1063/1.857979

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

In order to determine the best representation of the turbulence spectrum in the dissipation range, the dynamical equation for the rate of energy dissipation E is used, together with a model spectrum of the form E[k] = C(K)E2/3k - 5/3 exp[ - sigma-k(m)], to obtain a prediction for the velocity derivative skewness SBAR at high Reynolds number: SBAR = SBAR [C(K),m]. The skewness data suggest that m = 2 is the best model for laboratory-scale flows.

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页码：992 / 994

页数：3

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