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Gyrokinetic Simulation of Particle and Heat Transport in the Presence of Wide Orbits and Strong Profile Variations in the Edge Plasma
Author(s) -
Heikkinen J. A.,
Henriksson S.,
Janhunen S.,
Kiviniemi T. P.,
Ogando F.
Publication year - 2006
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.200610035
Subject(s) - electric field , tokamak , physics , turbulence , plasma , particle in cell , nonlinear system , electron , pressure gradient , ion , particle (ecology) , gyrokinetics , computational physics , mechanics , nuclear physics , oceanography , quantum mechanics , geology
A full f nonlinear 5D gyrokinetic electrostatic particle‐in‐cell code ELMFIRE using an implicit direct solution method for ion polarization drift and electron parallel velocity response to electric field and its validation are described. The developed code is applied for transport analysis in a tokamak plasma at steep pressure gradient. The role of turbulence and neoclassical equilibrium in determining the flux surface averaged radial electric field component are investigated, as well as the role of the latter in affecting the saturation level of the turbulence. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)