Results 21 to 30 of about 55,023 (282)

Relaxed plasma equilibria and entropy-related plasma self-organization principles [PDF]

, 2015
The concept of plasma relaxation as a constrained energy minimization is reviewed. Recent work by the authors on generalizing this approach to partially relaxed threedimensional plasma systems in a way consistent with chaos theory is discussed, with a ...
Dewar, Robert, Hole, Matthew, Hudson, Stuart R, McGann, Mathew, Mills, Ruth   +4 more
core   +1 more source

Entropy Generation Analysis of Laminar Flows of Water-Based Nanofluids in Horizontal Minitubes under Constant Heat Flux Conditions

Entropy, 2018
During the last decade, second law analysis via entropy generation has become important in terms of entropy generation minimization (EGM), thermal engineering system design, irreversibility, and energy saving.
Mehrdad Karimzadehkhouei, Mostafa Shojaeian, Abdolali Khalili Sadaghiani, Kürşat Şendur, M. Pinar Mengüç, Ali Koşar   +5 more
doaj   +1 more source

Oceanic rings and jets as statistical equilibrium states [PDF]

, 2011
Equilibrium statistical mechanics of two-dimensional flows provides an explanation and a prediction for the self-organization of large scale coherent structures.
Abramov, Antoine Venaille, Bouchet, Bouchet, Bouchet, Bouchet, Bouchet, Carnevale, Chavanis, Chelton, Cushman-Roisin, Dibattista, Dijkstra, Dubinkina, Ellis, Ellis, Eyink, Flierl, Fofonoff, Freddy Bouchet, Frederiksen, Gelfand, Kraichnan, Majda, Marston, McWilliams, Michel, Miller, Modica, Morrow, Naso, Nof, Olson, Onsager, Pedlosky, Pierrehumbert, Prieto, Rhines, Ripa, Robert, Robert, Robert, Salmon, Salmon, Schecter, Turkington, Turkington, Vallis, Venaille, Venaille, Venaille, Wang, Zou   +52 more
core   +5 more sources

Entropy Generation via Ohmic Heating and Hall Current in Peristaltically-Flowing Carreau Fluid

Entropy, 2019
The core objective of the present study is to examine entropy generation minimization via Hall current and Ohmic heating. Carreau fluid considerations interpret the unavailability of systems’ thermal energy (for mechanical work).
Saima Noreen, Asif Abbas, Abid Hussanan
doaj   +1 more source

A mathematical model for entropy generation in a Powell-Eyring nanofluid flow in a porous channel

Heliyon, 2019
The continuous generation of entropy leads to exergy destruction which reduces the performance of a physical system. Hence, entropy minimization becomes necessary.
Hammed Abiodun Ogunseye, Precious Sibanda   +1 more
doaj   +1 more source

Heat Transfer Improvement in an Open Cubic Cavity using a Hybrid Nanofluid [PDF]

Journal of Applied and Computational Mechanics, 2021
Numerical simulation of convection heat transfer and entropy generation in an open cubic cavity filled with a hybrid nanofluid is carried out. This configuration is heated uniformly by a constant volumetric heat source qv.
Saliha Bellout, Rachid Bessaïh
doaj   +1 more source

Entropy Generation During the Interaction of Thermal Radiation with a Surface

Entropy, 2012
The entropy calculation for radiation fluxes is reviewed and applied to simple radiation-surface interactions. A plate interacting with radiation from a hot object in the zenith of the hemisphere surrounded by a colder atmosphere is analyzed in detail ...
Stephan Kabelac, Rainer Conrad
doaj   +1 more source

Thermodynamic optimization of fluid flow over an isothermal moving plate

Alexandria Engineering Journal, 2013
In this paper, entropy generation minimization (EGM) was employed in order to achieve a thermodynamic optimization of fluid flow and heat transfer over a flat plate.
A. Malvandi, F. Hedayati, D.D. Ganji
doaj   +1 more source

Entropy Minimization for Generalized Newtonian Fluid Flow between Converging and Diverging Channels

Micromachines, 2022
The foremost focus of this article was to investigate the entropy generation in hydromagnetic flow of generalized Newtonian Carreau nanofluid through a converging and diverging channel.
Sohail Rehman, Hashim, Abdelaziz Nasr, Sayed M. Eldin, Muhammad Y. Malik   +4 more
doaj   +1 more source

Thermal Equilibrium Curves and Turbulent Mixing in Keplerian Accretion Disks [PDF]

, 1999
We consider vertical heat transport in Keplerian accretion disks, including the effects of radiation, convection, and turbulent mixing driven by the Balbus-Hawley instability, in astronomical systems ranging from dwarf novae (DNe), and soft X-ray ...
Batchelor G.K., Canuto V. M., Cox A. N., Ethan T. Vishniac, Honma F., John K. Cannizzo, Kazantsev A. P., Livio M., Ludwig K., Maeder A., Maeder A., Meyer F., Mineshige S., Mineshige S., Pin‐Gao Gu, Pojmanski G., Rudiger C., Schittkowski K., Shakura N. I., Smak J., Speziale C. G., Talon S., Velikhov E. P., Wood J. H., Zahn J.-P.   +24 more
core   +2 more sources