Closure of non-equilibrium volume-averaged energy equations in high-conductivity porous media

被引：21
|
作者：
DeGroot, Christopher T. [1 ]
Straatman, Anthony G. [1 ]
机构：
[1] Univ Western Ontario, Dept Mech & Mat Engn, London, ON N6A 5B9, Canada
来源：
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2011年 / 54卷 / 23-24期
基金：
加拿大自然科学与工程研究理事会;
关键词：
Porous media; Thermal dispersion; Volume-averaging; Closure; Convective heat transfer; CONVECTIVE HEAT-TRANSFER; THERMAL DISPERSION; FORCED-CONVECTION; BOUNDARY-CONDITIONS; FLUID-FLOW; FIBROUS MEDIA; DOMAINS; FOAMS; MODEL; TRANSPORT;
D O I：
10.1016/j.ijheatmasstransfer.2011.07.018
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
A formulation for closure of the volume-averaged energy equations under local thermal non-equilibrium conditions has been proposed, providing a general method for obtaining the relevant effective properties for high-conductivity porous materials. The method requires numerical solution of the flow field, as well as closure problems, over a representative volume of porous media. This study considers an array of highly conductive circular cylinders for which all relevant effective properties are obtained. Comparisons are made to results in literature for low Reynolds numbers, while results at higher Reynolds numbers are presented to provide insight into the effects of inertia on the effective properties. (C) 2011 Elsevier Ltd. All rights reserved.
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页码：5039 / 5048
页数：10
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