Time-dependent patterns in the two-layer Rayleigh-Benard system

被引：54

作者：

Degen, MM ^{[1
]}

Colovas, PW ^{[1
]}

Andereck, CD ^{[1
]}

机构：

[1] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA

来源：

PHYSICAL REVIEW E | 1998年 / 57卷 / 06期

关键词：

D O I：

10.1103/PhysRevE.57.6647

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

We report experiments on the two-layer Rayleigh-Benard system with two different pairs of fluids and with both rectangular and annular geometries. Theoretical studies have shown that in addition to two distinct stationary states, it is possible to have time-dependent patterns at or near convective onset. We have found a traveling wave pattern at the onset to convection using silicone oil over water. Standing and traveling wave states have been found slightly above the onset to convection in a system of silicone oil over Fluorinert(TM). The basic form of these time-dependent states is consistent with the predictions, while some of the quantitative properties of the states depend on the system geometry.

引用

页码：6647 / 6659

页数：13

共 42 条

[21] OSCILLATORY CONVECTION IN BINARY-MIXTURES [J].