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Effects of resistive drift wave turbulence on tokamak edge transport
Author(s) -
Nishimura Y.,
Borrass K.,
Coster D.,
Scott B.
Publication year - 2004
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.200410027
Subject(s) - collisionality , physics , tokamak , turbulence , adiabatic process , vortex , plasma , diffusion , magnetic field , resistive touchscreen , mechanics , enhanced data rates for gsm evolution , wave turbulence , computational physics , nuclear physics , thermodynamics , quantum mechanics , electrical engineering , engineering , telecommunications , computer science
Tokamak edge plasma transport in a diverted geometry is studied employing Braginskii type two dimensional transport simulation and drift wave turbulence simulation. The two models are connected through local perpendicular transport coefficients. The basic idea behind is to replace fast time scale, repetitive turbulence vortex dynamics by a diffusion operator. To this end, parameterization of transport coefficients D and χ is introduced. The transport is determined by the gradient drives inside the separatrix and non‐adiabatic electron response induced by high collisionality in the low temperature open‐magnetic‐field‐line regions. (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)