Gyrokinetic particle simulation of neoclassical transport in the pedestal/scrape-off region of a tokamak plasma

S. Ku*, C. S. Chang, M. Adams, J. Cummings, F. Hinton, David Elliot Keyes, S. Klasky, W. Lee, Z. Lin, S. Parker

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

27 Scopus citations

Abstract

A gyrokinetic neoclassical solution for a diverted tokamak edge plasma has been obtained for the first time using the massively parallel Jaguar XT3 computer at Oak Ridge National Laboratory. The solutions show similar characteristics to the experimental observations: electric potential is positive in the scrape-off layer and negative in the H-mode layer, and the parallel rotation is positive in the scrape-off layer and at the inside boundary of the H-mode layer. However, the solution also makes a new physical discovery that there is a strong ExB convective flow in the scrape-off plasma. A general introduction to the edge simulation problem is also presented.

Original languageEnglish (US)
Article number012
Pages (from-to)87-91
Number of pages5
JournalJournal of Physics: Conference Series
Volume46
Issue number1
DOIs
StatePublished - Oct 1 2006

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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