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RESEARCH PAPERS

Natural Convection in Enclosed Porous Media With Rectangular Boundaries

[+] Author and Article Information
B. K. C. Chan, C. M. Ivey

Engineering Research Division, Australian Atomic Energy Commission Research Establishment, Sutherland, New South Wales, Australia

J. M. Barry

Applied Mathematics and Computing Section, Australian Atomic Energy Commission Research Establishment, Sutherland, New South Wales, Australia

J. Heat Transfer 92(1), 21-27 (Feb 01, 1970) (7 pages) doi:10.1115/1.3449641 History: Received June 06, 1968; Revised April 29, 1969; Online August 11, 2010

Abstract

Numerical methods are used to solve the field equations for heat transfer in a porous medium filled with gas and bounded by plane rectangular surfaces at different temperatures. The results are presented in terms of theoretical streamlines and isotherms. From these the relative increases in heat transfer rate, corresponding to natural convection, are obtained as functions of three-dimensionless parameters: the Darcy number Da, the Rayleigh number Ra, and a geometric aspect ratio L/D. A possible correlation using the lumped parameter Da Ra is proposed for Da Ra greater than about 40.

Copyright © 1970 by ASME
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