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Radiative entropy production [PDF]

open access: yesAIAA Journal, 1985
The radiative tensor obtained from the specular moments of the transfer equation is considered. The radiative entropy production is expressed in terms of this tensor.
V. S. Arpaci, A. Selamet
openaire   +4 more sources

Entropy production at RHIC [PDF]

open access: yesPhysics Letters B, 2004
6 pages, 2 figures, Revtex, version to appear in ...
Pal, Subrata, Pratt, Scott
openaire   +2 more sources

Entropy Production in Thermostats II [PDF]

open access: yesJournal of Statistical Physics, 2007
We show that an arbitrary Anosov Gaussian thermostat close to equilibrium has positive entropy poduction unless the external field $E$ has a global potential. The configuration space is allowed to have any dimension and magnetic forces are also allowed. We also show the following non-perturbative result. Suppose a Gaussian thermostat satisfies \[K_{w}(
Dairbekov, Nurlan S.   +1 more
openaire   +2 more sources

A Photon Force and Flow for Dissipative Structuring: Application to Pigments, Plants and Ecosystems

open access: yesEntropy, 2022
Through a modern derivation of Planck’s formula for the entropy of an arbitrary beam of photons, we derive a general expression for entropy production due to the irreversible process of the absorption of an arbitrary incident photon spectrum in material ...
Karo Michaelian   +1 more
doaj   +1 more source

Entropy production in affine inflation [PDF]

open access: yesPhysical Review D, 2020
Multiple scalar fields nonminimally interacting through pure affine gravity are considered to generate primordial perturbations during an inflationary phase. The couplings considered give rise to two distinct sources of entropy perturbations that may not be suppressed in the long wavelength limit.
Hemza Azri, Salah Nasri
openaire   +2 more sources

The Role of Vegetation on the Ecosystem Radiative Entropy Budget and Trends Along Ecological Succession

open access: yesEntropy, 2014
Ecosystem entropy production is predicted to increase along ecological succession and approach a state of maximum entropy production, but few studies have bridged the gap between theory and data.
Paul C. Stoy   +4 more
doaj   +1 more source

Entropy Production in Stochastics

open access: yesEntropy, 2017
While the modern definition of entropy is genuinely probabilistic, in entropy production the classical thermodynamic definition, as in heat transfer, is typically used.
Demetris Koutsoyiannis
doaj   +1 more source

Entropy Production of Stars

open access: yesEntropy, 2015
The entropy production (inside the volume bounded by a photosphere) of main-sequence stars, subgiants, giants, and supergiants is calculated based on B–V photometry data. A non-linear inverse relationship of thermodynamic fluxes and forces as well as an
Leonid M. Martyushev, Sergey N. Zubarev
doaj   +1 more source

Quantifying the thermodynamic entropy budget of the land surface: is this useful? [PDF]

open access: yesEarth System Dynamics, 2011
As a system is moved away from a state of thermodynamic equilibrium, spatial and temporal heterogeneity is induced. A possible methodology to assess these impacts is to examine the thermodynamic entropy budget and assess the role of entropy production ...
N. A. Brunsell   +2 more
doaj   +1 more source

Analysis of Hydraulic Losses in Vortex Rope Inside the Draft Tube of Francis Pump-Turbine Based on Entropy Production Theory

open access: yesMachines, 2023
The existence of vortex ropes inside the draft tube significantly impacts hydraulic efficiency and operational stability, and few studies on the formation mechanism of vortex ropes and hydraulic loss problems have been explored.
Haobo Wang   +3 more
doaj   +1 more source

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