NATURAL-CONVECTION IN A FINITE WALL RECTANGULAR CAVITY FILLED WITH AN ANISOTROPIC POROUS-MEDIUM

被引：34

作者：

CHANG, WJ ^{[1
]}

LIN, HC ^{[1
]}

机构：

[1] CHUNG SHAN INST SCI TECHNOL,AERONAUT RES LAB,TAICHUNG,TAIWAN

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 1994年 / 37卷 / 02期

关键词：

D O I：

10.1016/0017-9310(94)90101-5

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A numerical study has been made to analyze the wall conduction effect on the natural convection in an anisotropic fluid-saturated porous medium filled in a rectangular cavity. The governing conservation equations are solved by a SIMPLE algorithm. The numerical results indicate that the anisotropic permeability influences the flow field and heat transfer rate significantly. A critical Value of the anisotropic thermal diffusivity ratio may exist such that the Nusselt number reaches a minimum. This critical value decreases with increasing the value of the anisotropic permeability ratio. Moreover, wall conductance effect can lead to large changes in the Nusselt numbers.

引用

页码：303 / 312

页数：10

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