Metal and graphite foam are relatively new types of porous materials characterized by having high-solid phase conductivities. In many cooling applications of these materials, including high-power electronics, low-conductivity fluids flow through them, e.g., air. A simple approximate engineering solution for the convection heat transfer inside a two-dimensional rectangular porous media subjected to constant heat flux on one side is presented. The conduction in the fluid is set to zero, and for simplicity, a plug flow is considered. As a result, the non-local-thermal equilibrium equations are significantly simplified and solved. The solid and fluid temperatures decay in what looks like an exponential fashion as the distance from the heated wall increases. The results are in good agreement with one more complex analytical solution in the literature, in the region far from the heated wall only.
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September 2009
Technical Briefs
An Engineering Estimate for Plug-Flow Convection in Porous Media Discarding Fluid Conduction
Nihad Dukhan
Nihad Dukhan
Department of Mechanical Engineering,
e-mail: nihad.dukhan@udmercy.edu
University of Detroit Mercy
, 4001 W. McNichols Road, Detroit, MI 48221
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Nihad Dukhan
Department of Mechanical Engineering,
University of Detroit Mercy
, 4001 W. McNichols Road, Detroit, MI 48221e-mail: nihad.dukhan@udmercy.edu
J. Electron. Packag. Sep 2009, 131(3): 034501 (3 pages)
Published Online: June 12, 2009
Article history
Received:
November 21, 2007
Revised:
February 18, 2009
Published:
June 12, 2009
Citation
Dukhan, N. (June 12, 2009). "An Engineering Estimate for Plug-Flow Convection in Porous Media Discarding Fluid Conduction." ASME. J. Electron. Packag. September 2009; 131(3): 034501. https://doi.org/10.1115/1.3143947
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