Heat transfer and entropy generation optimization of forced convection in porous-saturated ducts of rectangular cross-section

被引：95
|
作者：
Hooman, K. [1 ]
Gurgenci, H.
Merrikh, A. A.
机构：
[1] Univ Queensland, Sch Engn, Brisbane, Qld 4072, Australia
[2] Adv Micro Devices Inc, Austin, TX 78741 USA
来源：
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2007年 / 50卷 / 11-12期
关键词：
entropy generation; porous media; forced convection; rectangular duct; VISCOUS DISSIPATION; ENTRANCE REGION; FLUID-FLOW; CHANNEL; MEDIA;
D O I：
10.1016/j.ijheatmasstransfer.2006.11.015
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
We investigate analytically the first and the second law characteristics of fully developed forced convection inside a porous-saturated duct of rectangular cross-section. The Darcy-Brinkman flow model is employed. Three different types of thermal boundary conditions are examined. Expressions for the Nusselt number, the Bejan number, and the dimensionless entropy generation rate are presented in terms of the system parameters. The conclusions of this analytical study will make it possible to compare, evaluate, and optimize alternative rectangular duct design options in terms of heat transfer, pressure drop, and entropy generation. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码：2051 / 2059
页数：9
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