Stretching of vorticity and passive vectors in isotropic turbulence

被引：5

作者：

Ohkitani, K ^{[1
]}

机构：

[1] Kyoto Univ, Rims, Kyoto 6068502, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1998年 / 67卷 / 11期

关键词：

turbulence; vorticity; passive vectors; alignment;

D O I：

10.1143/JPSJ.67.3668

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In order to characterize the vortex stretching process in turbulence, a comparison is made numerically between nonlinear vortex stretching and a linear stretching process of a passive vector. It is found that the passive Vector is stretched more intensely than the vorticity. The physical meaning and the underlying mechanism of this effect are discussed.

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收藏

页码：3668 / 3671

页数：4

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