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第13届国际传热学会年报
Graham de Vahl Davis (open in a new tab) School of Mechanical and Manufacturing Engineering, University of New South Wales, Kensington, NSW, Australia
Eddie Leonardi (open in a new tab) Computational Fluid Dynamics Research Laboratory, School of Mechanical and Manufacturing Engineering, The University of New South Wales, Sydney, Australia 2052

ISSN Online: 2377-424X

ISBN CD: 1-56700-226-9

ISBN Online: 1-56700-225-0

NON-DARCY EFFECTS ON THREE-DIMENSIONAL NATURAL CONVECTION IN A POROUS BOX

page 10
DOI: 10.1615/IHTC13.p6.100
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摘要

Steady three-dimensional natural convection in a porous box with two opposite vertical walls subjected to constant temperatures (Th > Tc) and other walls insulated, has been numerically simulated employing Darcy-Brinkman-Forchheimer (DBF) flow model. The effects of Brinkman viscous and Forchheimer non-linear inertial terms become significant at higher Rayleigh number, Ra when Da > 10−5 and Fc/Pr > 10−5 respectively. The average Nusselt number value increases with horizontal aspect ratio and becomes constant for ARz > 1

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