Experimental study of the multipolar vortex instability

被引：42

作者：

Eloy, C ^{[1
]}

Le Gal, P ^{[1
]}

Le Dizès, S ^{[1
]}

机构：

[1] Inst Rech Phenomenes Hors Equilibre, CNRS UMR 6594, Marseille, France

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 85卷 / 16期

关键词：

D O I：

10.1103/PhysRevLett.85.3400

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The instability of a vortex subjected to a stationary dipolar or tripolar constraint is studied experimentally by using a rotating deformable cylinder on which two or three rollers are applied. As the Reynolds number and the aspect ratio of the cylinder are varied, different modes of instability are observed and their wavelength and frequency are compared to theoretical predictions. Secondary instability and cyclic breakup are also evidenced in the elliptic geometry.

引用

页码：3400 / 3403

页数：4

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