Forced convection on a heated horizontal flat plate with finite thermal conductivity in a non-Darcian porous medium

被引:11
|
作者
Luna, N
Méndez, F
机构
[1] Univ Nacl Autonoma Mexico, Fac Ingn, Mexico City 04510, DF, Mexico
[2] Secretaria Energia, Direcc Gen Explorac Hidrocarburos, Direcc Operac Petr, Mexico City 03100, DF, Mexico
关键词
porous medium; heated flat plate; perturbation techniques; Nusselt number; conjugated heat transfer;
D O I
10.1016/j.ijthermalsci.2004.12.008
中图分类号
O414.1 [热力学];
学科分类号
摘要
The steady-state analysis of conjugated heat transfer process for the hydrodynamically developed forced convection flow on a heated flat plate embedded in a porous medium is studied. The governing equations for the fluid-saturated porous medium are solved analytically using the integral boundary layer approximation. This integral solution is coupled to the energy equation for the flat plate, where the longitudinal heat conduction effects are taken into account. The resulting equations are then reduced to an integro-differential equation which is solved by regular perturbation techniques and numerical methods. The analytical and numerical predictions for the temperature profile of the plate and appropriate local and average Nusselt numbers are plotted for finite values of the conduction parameter, alpha, which represents the presence of the longitudinal heat conduction effects. (c) 2005 Elsevier SAS. All rights reserved.
引用
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页码:656 / 664
页数:9
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