ISSN Online: 2377-424X
ISBN Print: 0-85295-345-3
International Heat Transfer Conference 10
A VARIATIONAL FORMULATION FOR HEAT WAVES IN SOLIDS
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.