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TECHNICAL BRIEFS

The Modeling of Viscous Dissipation in a Saturated Porous Medium

[+] Author and Article Information
D. A. Nield

Department of Engineering Science, University of Auckland, Private Bag 92019, Auckland 1142, New Zealandd.nield@auckland.ac.nz

J. Heat Transfer 129(10), 1459-1463 (Feb 04, 2007) (5 pages) doi:10.1115/1.2755069 History: Received August 29, 2006; Revised February 04, 2007

A critical review is made of recent studies of the modeling of viscous dissipation in a saturated porous medium, with applications to either forced convection or natural convection. Alternative forms of the viscous dissipation function are discussed. Limitations to the concept of fully developed convection are noted. Special attention is focused on the roles of viscous dissipation and work done by pressure forces (flow work) in natural convection in a two-dimensional box with either lateral or bottom heating.

Copyright © 2007 by American Society of Mechanical Engineers
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