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ISSN Online: 2377-424X

ISBN Print: 0-85295-345-3

International Heat Transfer Conference 10
August, 14-18, 1994, Brighton, UK

A VARIATIONAL FORMULATION FOR HEAT WAVES IN SOLIDS

Get access (open in a dialog) DOI: 10.1615/IHTC10.890
pages 433-438

Resumo

A variational approach to heat waves in solids within extended irreversible thermodynamics is presented. The formalism gives a nonlinear time evolution equation for the heat flux in a rigid solid which, together with energy balance, describes in closed form the nonequilibrium processes which occur in a time scale comparable to the relaxation time of the heat flux. Well known results of heat transport are recovered in the appropriate limits but the structure of the equation allows for couplings not considered up until now whose consequences remain to be assessed.