Fokker-Planck Modelling of Edge Plasma Near the Neutralizer Plate in a Tokamak

Autor:	J. P. Matte, Z. Abou-Assaleh, T. W. Johnston, Richard Marchand
Rok vydání:	1992
Předmět:	Physics Tokamak Plasma Electron Condensed Matter Physics Kinetic energy Computational physics law.invention Ion Heat flux law Limiter Fokker–Planck equation Atomic physics
Zdroj:	Contributions to Plasma Physics. 32:268-272
ISSN:	1521-3986 0863-1042
Popis:	We have modelled the transport of particles and energy through a tokamak SOL near the neutralizer plate. The electron kinetic/ion fluid code FPI and a two-fluid code were employed for this study. Because of the electron time scale, it would lake a very long time to reach steady state with the kinetic code. We have therefore developed a hybrid technique, using both codes in alternation, to reach a full equilibrium compatible with electron kinetics. When it is used in the stand-alone mode, the two-fluid code's results are closest to FPI if a heat flux limiter f=0.2 is used. The electron distribution function is very non-Maxwellian near the plate.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c2f6dcad0ace272ce8b4794044f50312 https://doi.org/10.1002/ctpp.2150320315 Zobrazit plný text záznamu Plný text