Natural convection in rectangular enclosures heated from one side and cooled from the ceiling
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, vol.42, no.13, pp.2345-2355, 1999 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 42 Issue: 13
- Publication Date: 1999
- Doi Number: 10.1016/s0017-9310(98)00319-6
- Journal Name: INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Page Numbers: pp.2345-2355
- Karadeniz Technical University Affiliated: Yes
Abstract
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.