MINIMUM ENTROPY PRODUCTION AND MEAN-FIELD CONFIGURATION IN TOROIDAL PINCHES

Authors
KUCINSKI MY
Citation
My. Kucinski, MINIMUM ENTROPY PRODUCTION AND MEAN-FIELD CONFIGURATION IN TOROIDAL PINCHES, Plasma physics and controlled fusion, 40(1), 1998, pp. 111-125
Citations number
36
Categorie Soggetti
Phsycs, Fluid & Plasmas","Physics, Nuclear
Journal title
Plasma physics and controlled fusion → ACNP
ISSN journal
07413335
Volume
40
Issue
1
Year of publication
1998
Pages
111 - 125
Database
ISI
SICI code
0741-3335(1998)40:1<111:MEPAMC>2.0.ZU;2-E
Abstract
A single variational theory is proposed to explain the self-organizati on of the plasma in tokamaks and RFPs. It is assumed that the plasma r elaxes towards a state of minimum entropy production rate and that the entropy is produced through mean conduction as well as turbulence. Pr essure equilibrium and generalized Ohm's taw are considered to be the most important constraints upon the quasi-equilibrium configuration. N umerical calculations reproduce typical observations in RFPs and tokam aks.