NOISE-SUSTAINED STRUCTURE IN TAYLOR-COUETTE FLOW WITH THROUGH-FLOW

被引：96

作者：

BABCOCK, KL ^{[1
]}

AHLERS, G ^{[1
]}

CANNELL, DS ^{[1
]}

机构：

[1] UNIV CALIF SANTA BARBARA,CTR NONLINEAR SCI,SANTA BARBARA,CA 93106

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 24期

关键词：

D O I：

10.1103/PhysRevLett.67.3388

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report experimental and theoretical results for the absolute and convective instability boundaries in Taylor-Couette flow with imposed axial flow as a function of the axial Reynolds number. Experiment and theory agree quantitatively. In the downstream region Of a large-aspect-ratio system, noise-sustained structures of traveling vortices exist in much of the convectively unstable regime. These structures have a nearly time-independent amplitude, but a noisy phase. The phase noise ceases abruptly upon crossing the absolute instability boundary.

引用

页码：3388 / 3391

页数：4

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