Forced Convection Heat Transfer Augmentation in a Channel With A Localized Heat Source Using Fibrous Materials

[+] Author and Article Information
D. Angirasa

Center for Space Power, NASA Center for the Commercial Development of Space, College Station, TX 77843-3118

G. P. Peterson

Center for Space Power, Texas A & M University, College Station, TX 77843-3118

J. Electron. Packag 121(1), 1-7 (Mar 01, 1999) (7 pages) doi:10.1115/1.2792656 History: Received February 07, 1997; Revised October 05, 1998; Online November 05, 2007


A numerical model is developed for high Reynolds number forced convection heat transfer in a channel filled with randomly oriented, thin fibrous materials of high porosity. A localized isothermal heat source, flush with one of the channel walls is considered to simulate an electronic component. The inertial coefficient and the dispersion conductivity associated with high Reynolds number flows and convective heat transfer are empirically modeled from existing experimental and analytical studies. The resulting fluid flow and heat transfer relationships are presented for a relevant range of parameters, and the fundamental physical processes are explained.

Copyright © 1999 by The American Society of Mechanical Engineers
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