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Improved boundary condition for full‐f gyrokinetic simulations of circular‐limited tokamak plasmas in ELMFIRE
Author(s) -
Chôné L.,
Kiviniemi T.P.,
Leerink S.,
Niskala P.,
Rochford R.
Publication year - 2018
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.201700185
Subject(s) - limiter , tokamak , plasma , physics , turbulence , torus , beta (programming language) , computational physics , mechanics , nuclear physics , computer science , geometry , mathematics , telecommunications , programming language
We report new results of full‐torus gyrokinetic simulations of electrostatic turbulence with Elmfire spanning from the magnetic axis to the scrape‐off layer (SOL). The new implementation presented here uses the logical boundary condition, which allows for improved stability and flexibility in terms of geometry. We simulate the full plasma of the FT‐2 tokamak (Ioffe Institute, Saint‐Petersburg, Russian Federation), with two poloidal limiters defining the SOL. We recover expected results in the SOL and find an improvement in our capacity to model the experimental particle and energy sinks in the SOL.