COMPETING AND COEXISTING DYNAMIC STATES OF TRAVELING-WAVE CONVECTION IN AN ANNULUS

被引：93

作者：

BENSIMON, D ^{[1
]}

KOLODNER, P ^{[1
]}

SURKO, CM ^{[1
]}

WILLIAMS, H ^{[1
]}

CROQUETTE, V ^{[1
]}

机构：

[1] AT&T BELL LABS,MURRAY HILL,NJ 07974

来源：

JOURNAL OF FLUID MECHANICS | 1990年 / 217卷

关键词：

D O I：

10.1017/S0022112090000799

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

We describe experiments on convection in binary fluid mixtures in a large-aspect-ratio annular container. In this geometry, the convective rolls align radially and travel azimuthally, providing a model of travelling waves in an extended one-dimensional nonlinear dynamical system. Several different stable non-equilibrium states can be produced in this experiment, and the competition between them leads to a wide variety of steady and time-dependent behaviour. The observed spatiotemporal behaviour may shed light on recent theories of the nature of stable nonlinear travelling-wave convection, the pinning of travelling waves, and the creation of spatiotemporal defects. © 1990, Cambridge University Press. All rights reserved.

引用

页码：441 / 467

页数：27

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