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RESEARCH PAPERS

Natural Convection in a Porous Medium: Effects of Confinement, Variable Permeability, and Thermal Boundary Conditions

[+] Author and Article Information
R. J. Ribando, K. E. Torrance

Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, N. Y.

J. Heat Transfer 98(1), 42-48 (Feb 01, 1976) (7 pages) doi:10.1115/1.3450467 History: Received September 02, 1975; Online August 11, 2010

Abstract

Two-dimensional numerical calculations are reported for natural convection of a fluid in a porous, horizontal layer heated from below. Effects of the following parameters are examined: rigid (impermeable) and constant-pressure (permeable) upper boundaries; isothermal and uniform heat flux at the lower boundary; and permeabilities which are constant, or which vary with depth to simulate compaction of a porous medium or property variations of real fluids within the medium. Steady-state results are presented for the heat flux distribution on the upper surface, as well as for flow and temperature fields in the interior.

Copyright © 1976 by ASME
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