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Multi‐Species Developments in the EDGE2D Code
Author(s) -
Fichtmüller M.,
Corrigan G,
Radford G,
Simonini R,
Spence J,
Taroni A
Publication year - 1998
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.2150380143
Subject(s) - moment (physics) , momentum (technical analysis) , code (set theory) , impurity , charge (physics) , helium , set (abstract data type) , angular momentum , physics , reduction (mathematics) , computational physics , statistical physics , atomic physics , computer science , classical mechanics , quantum mechanics , mathematics , geometry , finance , economics , programming language
Abstract The scrape‐off layer code EDGE2D has been extended to accommodate more than one impurity species [1]. The parallel transport coefficients are calculated from a 21 moment description using the method of reduced charge states (RCS). Simulations with carbon and helium as impurities have been carried out to validate the multi‐species version of EDGE2D. It is shown that further use of RCS allows the reduction of the number of momentum equations. The computing time is thereby substantially reduced. At the same time the code results show little difference between using the reduced set of momentum equations and using the full set.