Dual steady solutions in natural convection between horizontal concentric cylinders

被引：58

作者：

Yoo, JS

机构：

[1] Dept. of Mech. Engineering Education, Andong National University, Andong, Kyungpuk

[2] Dept. of Mech. Engineering Education, Andong National University, Andong, Kyungpuk 760-749

来源：

INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW | 1996年 / 17卷 / 06期

关键词：

natural convection; dual solutions; counter-rotating eddies;

D O I：

10.1016/S0142-727X(96)00064-1

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Dual steady solutions in natural convection in an annulus between two horizontal concentric cylinders are numerically investigated for a fluid of Prandtl number 0.7. It is found that, when the Rayleigh number based on the gap width exceeds a certain critical value, dual steady two-dimensional (2-D) flows can be realized: one being the crescent-shaped eddy flow commonly observed and the other the flow consisting of two counter-rotating eddies and their mirror images. The critical Rayleigh number decreases as the inverse relative gap width increases. (C) 1996 by Elsevier Science Inc.

引用

页码：587 / 593

页数：7

共 16 条

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