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Implementation into B2 of a 21‐moment description for the parallel transport
Author(s) -
Bergmann A.,
Igitkhanov Yu.,
Braams B.,
Coster D. P.,
Schneider R.
Publication year - 1996
Publication title -
contributions to plasma physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.531
H-Index - 47
eISSN - 1521-3986
pISSN - 0863-1042
DOI - 10.1002/ctpp.2150360218
Subject(s) - moment (physics) , impurity , plasma , flux (metallurgy) , momentum (technical analysis) , heat flux , code (set theory) , transformation (genetics) , physics , enhanced data rates for gsm evolution , set (abstract data type) , computational physics , mechanics , statistical physics , classical mechanics , heat transfer , computer science , materials science , nuclear physics , quantum mechanics , chemistry , telecommunications , biochemistry , finance , economics , metallurgy , gene , programming language
The multifluid edge plasma code B2 is improved by implementing a new description for the parallel heat flux, thermal force, and viscous momentum flux obtained by a 21‐moment approximation. An exact transformation to a set of only two equations for each isotope is used. Hence there is only a moderate increase of the computational time. The new code provides a more accurate treatment of the parallel transport, in particular the impurity transport, valid for any impurity concentration.