EXTENSION OF THE KOLMOGOROV REFINED SIMILARITY HYPOTHESIS FOR ISOTROPIC TURBULENCE

被引：15

作者：

HOSOKAWA, I

机构：

[1] University of Electro-Communications, Chofu, Tokyo

来源：

FLUID DYNAMICS RESEARCH | 1995年 / 15卷 / 05期

关键词：

D O I：

10.1016/0169-5983(94)00051-Z

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The refined similarity hypothesis proposed by Kolmogorov in 1962 to explain the intermittent structure of isotropic turbulence is modified. It is shown that a slight but fundamental deviation from the hypothesis leads to success in precisely bridging between the statistics of longitudinal velocity increment across distance r and that of energy dissipation rate averaged over a domain of scale r in a wide range of r reaching the dissipation range, when one assumes a binomial Canter set model for the latter statistics. The success also covers a reasonable prediction of the statistics of longitudinal velocity gradient with proper skewness and kurtosis for any large Reynolds number based on the Taylor microscale.

引用

页码：337 / 348

页数：12

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