Large-scale finite-wavelength modulation within turbulent shear flows -: art. no. 014501

被引：172

作者：

Prigent, A ^{[1
]}

Grégoire, G

Chaté, H

Dauchot, O

van Saarloos, W

机构：

[1] CEA Saclay, Serv Phys Etat Condense, F-91191 Gif Sur Yvette, France

[2] Leiden Univ, Inst Lorentz, NL-2300 RA Leiden, Netherlands

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 89卷 / 01期

关键词：

D O I：

10.1103/PhysRevLett.89.014501

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We show that turbulent "spirals" and "spots" observed in Taylor-Couette and plane Couette flow correspond to a turbulence-intensity modulated finite-wavelength pattern which in every respect fits the phenomenology of coupled noisy Ginzburg-Landau (amplitude) equations with noise. This suggests the existence of a long-wavelength instability of the homogeneous turbulence regime.

引用

页码：145011 / 145014

页数：4

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