Journal Article

PreJuSER-45652

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Predictive modelling of L and H confinement modes and edge pedestal characteristics

Kalupin, D.FZJ* ; Tokar, M. Z.FZJ* ; Unterberg, B.FZJ* ; Loozen, X.FZJ* ; Pilipenko, D.

2005
IAEA Vienna

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Please use a persistent id in citations: http://hdl.handle.net/2128/1856  doi:10.1088/0029-5515/45/6/008

Abstract: The results of predictive self-consistent modelling of plasma parameters in low (L) and high (H) confinement modes by the one-dimensional transport code RITM, with particular emphasis on the properties of the edge transport barrier, are presented and discussed. The same transport model is used under both L- and H-mode conditions and includes contributions from ion temperature gradient (ITG), trapped electron, drift Alfven (DA) and drift resistive ballooning instabilities described in the fluid approximation. The computations predict the formation of the edge transport barrier at a high enough heating power due to stabilization of ITG and DA modes, dominating the edge transport in the L-mode, through the effects of the density gradient and the pressure gradient at low collisionality, respectively. The calculated radial profiles and scalings for pedestal and confinement characteristics are compared with measurements on JET, DIII-D and JT-60U tokamaks.

Keyword(s): J

Note: Record converted from VDB: 12.11.2012

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Contributing Institute(s):

1. Institut für Plasmaphysik (IPP)

Research Program(s):

1. Kernfusion und Plasmaforschung (E05)

Appears in the scientific report 2005
Notes: This version is available at the following URL: http://dx.doi.org/10.1088/0029-5515/45/6/008

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