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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页码：3668 / 3671
页数：4
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