Results 51 to 60 of about 442,315 (312)

Entropy production in the nonreciprocal Cahn-Hilliard model. [PDF]

Physical Review E, 2023
We study the nonreciprocal Cahn-Hilliard model with thermal noise as a prototypical example of a generic class of non-Hermitian stochastic field theories, analyzed in two companion papers [Suchanek, Kroy, and Loos, Phys. Rev. Lett.
T. Suchanek, K. Kroy, S. Loos
semanticscholar   +1 more source

Design and optimization of bionic Nautilus volute for a hydrodynamic retarder

Engineering Applications of Computational Fluid Mechanics, 2023
To reduce the energy loss of volute and improve the emergency braking performance of hydrodynamic retarder under design condition, a bionic volute optimization design method is proposed based on the Nautilus shell.
Wei Wei, Tao Tianlang, Si Lurong, Wang Guanghua, Yan Qingdong   +4 more
doaj   +1 more source

Field theories of active particle systems and their entropy production [PDF]

Reports on Progress in Physics
Abstract Active particles that translate chemical energy into self-propulsion can maintain a far-from-equilibrium steady state and perform work. The entropy production measures how far from equilibrium such a particle system operates and serves as a proxy for the work performed.
Gunnar Pruessner, Rosalba Garcia-Millan
openaire   +2 more sources

Energy loss evaluation in radical inflow turbine based on entropy production theory and orthogonal experiment method

The Physics of Fluids
The fluctuation of heat source conditions results in off-design operation of the radial inflow turbines (RIT) in the organic Rankine cycle. However, the flow loss characteristics of RIT under off-design conditions have not been completely revealed.
Zhiqi Wang, Huya Yang, Xin Li, Xiaoxia Xia, Qingsong Zuo, Baoqi Xie   +5 more
semanticscholar   +1 more source

Entropy Production and Viscosity of A Dilute Gas

, 2012
It is known that the viscosity of a dilute gas can be derived by using kinetic theory. We present here a new derivation by using two entropy production principles: the steepest entropy ascent (SEA) principle and the maximum entropy production (MEP ...
Zhang, Yong-Jun
core   +1 more source

Investigation into the Energy Loss Mechanism of Pump Turbine During the Runaway Process Based on Entropy Production Theory

Journal of Physics: Conference Series
The power-trip of the pump under certain conditions leads to the runaway of the unit, causing dangerous transitional process in pumped storage power stations.
Yanyan Li, Pengcheng Guo, Mengjia Cao, Longgang Sun   +3 more
semanticscholar   +1 more source

Dynamics of Entropy Production Rate in Two Coupled Bosonic Modes Interacting with a Thermal Reservoir

Entropy, 2022
The Markovian time evolution of the entropy production rate is studied as a measure of irreversibility generated in a bipartite quantum system consisting of two coupled bosonic modes immersed in a common thermal environment. The dynamics of the system is
Tatiana Mihaescu, Aurelian Isar
doaj   +1 more source

A discussion on maximum entropy production and information theory [PDF]

Journal of Physics A: Mathematical and Theoretical, 2007
12 pages, no ...
openaire   +2 more sources

Entropy, Closures and Subgrid Modeling

Entropy, 2008
Maximum entropy states or statistical mechanical equilibrium solutions have played an important role in the development of a fundamental understanding of turbulence and its role in geophysical flows. In modern general circulation models of the earth’
Terence J. O’Kane, Jorgen S. Frederiksen   +1 more
doaj   +1 more source

On the validity of entropy production principles for linear electrical circuits

, 2007
We discuss the validity of close-to-equilibrium entropy production principles in the context of linear electrical circuits. Both the minimum and the maximum entropy production principle are understood within dynamical fluctuation theory.
A. Dembo, A. Hjelmfelt, A.N. Jordan, C. Maes, C. Maes, C. Maes, C. Maes, C. Maes, Christian Maes, D. Dürr, D.-Q. Jiang, E.T. Jaynes, G.E. Crooks, H. Ziegler, I. Prigogine, Karel Netočný, L. Bertini, L. Onsager, L.M. Martyushev, M.D. Donsker, P. Županović, R. Graham, R. Landauer, R. Landauer, R. Landauer, S.R. Groot de, S.R.S. Varadhan, Stijn Bruers   +27 more
core   +1 more source