第13届国际传热学会年报
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
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