Natural convection in rectangular enclosures heated from one side and cooled from the ceiling

被引：100

作者：

Aydin, O ^{[1
]}

Ünal, A ^{[1
]}

Ayhan, T ^{[1
]}

机构：

[1] Karadeniz Tech Univ, Dept Mech Engn, TR-61080 Trabzon, Turkey

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 1999年 / 42卷 / 13期

关键词：

D O I：

10.1016/S0017-9310(98)00319-6

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Steady natural convection of air in a two-dimensional enclosure isothermally heated from one side and cooled from the ceiling is analyzed numerically using a stream function-vorticity formulation. Based on numerical predictions, the effects of Rayleigh number and aspect ratio on flow pattern and energy transport are investigated for Rayleigh numbers ranging from 10(3) to 10(7), and for five different aspect ratios of 0.25, 0.50, 1.0, 2.0 and 4.0. the effect of Rayleigh number on heat transfer is found to be more significant when the enclosure is shallow (a(r) > 1) and the influence of aspect ratio is stronger when the enclosure is tall and the Rayleigh number is high. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：2345 / 2355

页数：11

共 21 条

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