Nonequilibrium corrections in the pressure tensor due to an energy flux
Raquel Dominguez-Cascante, Jordi Faraudo (Departament de Fisica,, Universitat Autonoma de Barcelona, Bellaterra, Spain)
TL;DR
This paper revisits the interpretation of nonequilibrium corrections in the pressure tensor under energy flux, clarifying that these corrections describe a moving equilibrium rather than a true nonequilibrium state.
Contribution
It clarifies the physical meaning of nonequilibrium pressure tensor corrections, showing they represent a moving equilibrium system instead of a genuine nonequilibrium condition.
Findings
Pressure tensor corrections describe a moving equilibrium.
These corrections do not represent true nonequilibrium states.
Reinterpretation impacts the understanding of radiation under energy flux.
Abstract
The physical interpretation of the nonequilibrium corrections in the pressure tensor for radiation submitted to an energy flux obtained in some previous works is revisited. Such pressure tensor is shown to describe a moving equilibrium system but not a real nonequilibrium situation.
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