Generation of small-scale structures in well-developed turbulence

被引：12
|
作者：
Zybin, K. P. [1 ]
Sirota, V. A. [1 ]
Il'in, A. S. [1 ]
Gurevich, A. V. [1 ]
机构：
[1] Russian Acad Sci, Lebedev Phys Inst, Moscow 119991, Russia
来源：
JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS | 2007年 / 105卷 / 02期
关键词：
D O I：
10.1134/S1063776107080171
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The incompressible Navier-Stokes equations are considered in the limit of infinite Reynolds number. Flow instability is supposed to give rise to steady large-scale structures. The onset and development of small-scale turbulence is analyzed. It is shown that the developing small-scale fluctuations are characterized by intermittency. The highest intensity of vorticity fluctuations is attained in vortex filaments. The solution obtained is used to calculate the velocity pair correlation function in the limit of r -> 0. The result agrees with the Kolmogorov law K(r) proportional to r(2/3).
引用
收藏
页码：455 / 466
页数：12
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