We focus on the thermodynamic consistency of a class of phase change models recently proposed by Frémond [Non-smooth Thermomechanics. Springer, Berlin, 2002]. By establishing a maximum principle, we prove that, under rather weak assumptions on data, the temperature remains almost everywhere strictly positive. This general result applies to all dissipative models of this class that have been taken into account in the literature.
Positivity of the temperature for phase transitions with micro-movements
SCHIMPERNA, GIULIO FERNANDO;STEFANELLI, ULISSE MARIA
2007-01-01
Abstract
We focus on the thermodynamic consistency of a class of phase change models recently proposed by Frémond [Non-smooth Thermomechanics. Springer, Berlin, 2002]. By establishing a maximum principle, we prove that, under rather weak assumptions on data, the temperature remains almost everywhere strictly positive. This general result applies to all dissipative models of this class that have been taken into account in the literature.File in questo prodotto:
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