Hyperbolic Heat Conduction Equation for Materials With a Nonhomogeneous Inner Structure

[+] Author and Article Information
W. Kaminski

Institute of Chemical and Process Engineering, Technical University of Lodz, Lodz, Poland

J. Heat Transfer 112(3), 555-560 (Aug 01, 1990) (6 pages) doi:10.1115/1.2910422 History: Received June 07, 1988; Revised September 26, 1989; Online May 23, 2008


The physical meaning of the constant τ in Cattaneo and Vernotte’s equation for materials with a nonhomogeneous inner structure has been considered. An experimental determination of the constant τ has been proposed and some values for selected products have been given. The range of differences in the description of heat transfer by parabolic and hyperbolic heat conduction equations has been discussed. Penetration time, heat flux, and temperature profiles have been taken into account using data from the literature and our experimental and calculated results.

Copyright © 1990 by The American Society of Mechanical Engineers
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