DIRECT OBSERVATION OF THE INTERMITTENCY OF INTENSE VORTICITY FILAMENTS IN TURBULENCE

被引：367
|
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.
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收藏
页码：983 / 986
页数：4
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