Results 21 to 30 of about 293,513 (291)

How Flexible Is the Concept of Local Thermodynamic Equilibrium?

open access: yesEntropy, 2023
It has been demonstrated by using generalized phenomenological irreversible thermodynamic theory (GPITT) that by replacing the conventional composition variables {xk} by the quantum level composition variables {x˜k,j} corresponding to the nonequilibrium ...
Vijay M. Tangde, Anil A. Bhalekar
doaj   +1 more source

A thermodynamical model for population growth with relaxation phenomena

open access: yesAtti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2022
Reaction-diffusion models were used in dynamic fluid, population growth, pulse propagation in nerves and other biological phenomena. Some of these models have been expanded to describe memory effects in diffusion and therefore with the use of hyperbolic ...
Vincenzo Ciancio   +2 more
doaj   +1 more source

Incremental least action principle in the framework of thermodynamics of irreversible processes

open access: yesPhysical Review Research, 2020
In this paper, an incremental least action principle is proposed using the framework of the thermodynamics of irreversible processes. First, we establish that an extensive thermodynamic potential defined over an infinitesimal volume satisfies a ...
V. Magnenet, J. Schmittbuhl
doaj   +1 more source

Thermodynamically consistent generalized hydrodynamic theory of thermal conduction and integral equations of thermal conductivity of simple fluids in electromagnetic fields

open access: yesAIP Advances, 2021
We have reviewed thermodynamically consistent evolution equations of fluids in an invited review article in the McGill University bicentennial memorial issue [B. C. Eu, Can. J. Chem. (in press) (2021)].
Byung Eu
doaj   +1 more source

Time and Thermodynamics Extended Discussion on "Time & clocks: A thermodynamic approach" [PDF]

open access: yesResults in Physics, Volume 17, June 2020, 103165, 2020
In the paper, "Time & clocks: A thermodynamic approach" Lucia and Grisolia describe the connections between the physical nature of time and macroscopic irreversibility in thermodynamics. They also discuss the possibility of constructing a thermodynamic clock that links the two, through an approach based on the behaviour of a black body.
arxiv   +1 more source

Comprehensive Criteria for the Extrema in Entropy Production Rate for Heat Transfer in the Linear Region of Extended Thermodynamics Framework

open access: yesAxioms, 2020
In this work comprehensive criteria for detecting the extrema in entropy production rate for heat transfer by conduction in a uniform body under a constant volume in the linear region of Extended Thermodynamics Framework are developed. These criteria are
George D. Verros
doaj   +1 more source

Stability Analysis of a Self-Gravitating Fluid within EIT Theory

open access: yesUniverse, 2023
In this article, we apply the formalism of (classical) Extended Irreversible Thermodynamics (EIT) to the dynamics of density fluctuations for a self-gravitating fluid in a static Universe, considering only bulk viscosity.
J. Félix Salazar   +3 more
doaj   +1 more source

Entropic Constitutive Relation and Modeling for Fourier and Hyperbolic Heat Conductions

open access: yesEntropy, 2017
Most existing phenomenological heat conduction models are expressed by temperature and heat flux distributions, whose definitions might be debatable in heat conductions with strong non-equilibrium.
Shu-Nan Li, Bing-Yang Cao
doaj   +1 more source

On Thermodynamics Problems in the Single-Phase-Lagging Heat Conduction Model

open access: yesEntropy, 2016
Thermodynamics problems for the single-phase-lagging (SPL) model have not been much studied. In this paper, the violation of the second law of thermodynamics by the SPL model is studied from two perspectives, which are the negative entropy production ...
Shu-Nan Li, Bing-Yang Cao
doaj   +1 more source

On Entropic Framework Based on Standard and Fractional Phonon Boltzmann Transport Equations

open access: yesEntropy, 2019
Generalized expressions of the entropy and related concepts in non-Fourier heat conduction have attracted increasing attention in recent years. Based on standard and fractional phonon Boltzmann transport equations (BTEs), we study entropic functionals ...
Shu-Nan Li, Bing-Yang Cao
doaj   +1 more source

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