Study of mixed convection in an annular vertical cylinder filled with saturated porous medium, using thermal non-equilibrium model

被引：112

作者：

Ahmed, N. J. Salman ^{[1
]}

Badruddin, Irfan Anjum ^{[1
]}

Kanesan, Jeevan ^{[2
]}

Zainal, Z. A. ^{[3
]}

Ahamed, K. S. Nazim ^{[4
]}

机构：

[1] Univ Malaya, Dept Mech Engn, Kuala Lumpur 50603, Malaysia

[2] Univ Malaya, Dept Elect Engn, Kuala Lumpur 50603, Malaysia

[3] Univ Sains Malaysia, Sch Mech Engn, Nibong Tebal 14300, Malaysia

[4] Rural Engn Coll, Dept Civil Engn, Hulkoti 582205, India

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2011年 / 54卷 / 17-18期

关键词：

Porous media; Vertical annular cylinder; Mixed convection; Aiding flow; Opposing flow; Finite element method; Thermal non-equilibrium model; HEAT-TRANSFER; LAYER; RADIATION; PLATE;

D O I：

10.1016/j.ijheatmasstransfer.2011.05.001

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The present study deals with numerical investigation of effects of different parameters on enhancement or retardation of the heat transfer rate in an annular vertical cylinder filled with saturated porous medium. The heat transfer is assumed to take place by mixed convection mode. The thermal non-equilibrium approach is considered. The inner surface of the annular cylinder is maintained at constant wall temperature whereas the outer surface remains at ambient temperature. The governing partial differential equations are solved using finite element method. The results are discussed for the effects of Peclet number, interphase heat transfer co-efficient and thermal conductivity ratio. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：3822 / 3825

页数：4

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