DIRECT OBSERVATION OF THE INTERMITTENCY OF INTENSE VORTICITY FILAMENTS IN TURBULENCE

被引：370

作者：

DOUADY, S

COUDER, Y

BRACHET, ME

机构：

[1] Laboratoire de Physique Statistique, 75231 Paris Cedex 05

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.67.983

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Cavitation in a liquid seeded with bubbles is used as a new visualization technique to single out the regions of very low pressure of a fully developed turbulent flow. By this means, the sudden appearance of high vorticity filaments is observed. These structures are very thin and short lived and display a high degree of temporal as well as spatial intermittency. They contribute to the flow organization: In particular their disintegration corresponds to the formation of large eddies.

引用

页码：983 / 986

页数：4

共 17 条

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