PROBABILITY-DISTRIBUTION OF A PASSIVE SCALAR IN GRID-GENERATED TURBULENCE

被引：83

作者：

JAYESH

WARHAFT, Z

机构：

[1] Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 25期

关键词：

D O I：

10.1103/PhysRevLett.67.3503

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The probability distribution of passive temperature fluctuations is experimentally studied in grid-generated wind tunnel turbulence. It is shown that exponential tails occur for a mean temperature gradient but do not in the absence of a mean gradient. The velocity probability distribution is Gaussian.

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页码：3503 / 3506

页数：4

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