Results 211 to 220 of about 35,137 (259)

On the definition of non-equilibrium entropy

Journal of Physics A: Mathematical and General, 1982
In a recent letter (S. Simons, 1982) to the editor, criticisms were raised against an argument that the authors used in previous publications (1980, 1981, 1982) to justify a modification in the definition of the nonequilibrium entropy. These criticisms call for some comments that are developed in the present note.
G Lebon, J Casas-Vazquez, D Jou
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Non-equilibrium entropy

Physics Letters A, 1975
Abstract The correction, which is due to interactions between particles, to the non-equilibrium entropy of an ideal Bose-gas is calculated.
S.V. Peletminsky, A.J. Sokolovsky
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Entropy flux in non-equilibrium thermodynamics

Physica A: Statistical Mechanics and its Applications, 2004
Abstract An important problem in thermodynamics is the link between the entropy flux and the heat flux, for phenomena far from equilibrium. As an illustration we consider here the case of a rigid heat conductor subject to heating. The expression of the entropy flux is determined by the expressions of the evolution equations of the basic variables. It
D. JOU, G. LEBON, MONGIOVI', Maria Stella, RA PERUZZA   +3 more
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The non-equilibrium entropy function

Physics Letters A, 1968
Within the framework of a linear Chapman-Enskog theory, it is rigorously established that the non-equilibrium entropy can be identified with the H-function.
B.J. Smernoff, K.I. Golden
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Entropy and Entropy Production in Thermal and Chemical Non-Equilibrium Flows

Journal of Non-Equilibrium Thermodynamics, 1993
The expressions for the entropy and the production of entropy in the general case of a mixture of perfect gases in non-equilibrium chemical and internal modes, including different translational temperatures, are first given. The results obtained are then applied to the calculation of the entropy evolution along quasi-one-dimensional high temperature ...
Flament, C., Prud'homme, R.
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Quantifying Non-Equilibrium using Entropy Generation

45th AIAA Aerospace Sciences Meeting and Exhibit, 2006
We continue our study of entropy generation using both the fluid continuum representation and particle methods with the purpose of quantifying the limitations of the Navier-Stokes (N-S) equations in modeling non-equilibrium flows. Since particle methods can sometimes be computationally demanding and experimental data for hypersonic flows is difficult ...
Ryan Carr, Richard Branam, Jose Camberos
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On the non-equilibrium entropy

Physica A: Statistical Mechanics and its Applications, 1983
Abstract An analogue of the Brussels entropy for the algebraic description of quantum statistical mechanics is defined. The main properties of this generalized entropy are derived and discussed. The rigorous proof of return into equilibrium is given.
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Non-equilibrium entropy in excited nuclei

Physics Letters A, 1991
Abstract We investigate the time-dependent behaviour of entropy in excited nuclei. In distinction to recent claims, it is shown that no self-organisation is involved in pre-equilibrium nuclear reactions.
E. Běták, J.M. Akkermans
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Maximisation of the entropy in non-equilibrium

Journal of Physics A: Mathematical and General, 1987
This paper proves that the maximisation of the entropy in non-equilibrium is equivalent to the exploitation of the entropy inequality in extended thermodynamics.
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