Fluid modeling of an ELMing H-mode and a RMP H-mode

S. Mordijck*, R. A. Moyer, T. E. Evans, X. Bonnin, J. Canik, D. Coster, M. Groth, R. Maingi, T. H. Osborne, L. W. Owen, T. W. Petrie, D. Reiter, J. G. Watkins, E. A. Unterberg

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

9 Citations (Scopus)

Abstract

In this paper, we investigate the role of wall conditions during the density pump-out observed in Resonant Magnetic Perturbation (RMP) experiments. We use a 2D fluid code, coupled to a neutral Monte-Carlo code (SOLPS5) to model a reference ELMing H-mode. Next we modify either the recycling at the target plates or the pumping efficiency at the pump entrance. This causes a change in upstream profiles, that alone cannot account for the shape change observed in the RMP H-mode. Therefore, the radial transport must be altered to match the RMP H-mode. By comparing the transport model for the ELMing H-mode and the RMP H-mode, we show that inside the separatrix an increase in transport is necessary to model the effects of the applied perturbed field in RMP H-mode.

Original languageEnglish
Pages (from-to)299-302
Number of pages4
JournalJournal of Nuclear Materials
Volume390-391
DOIs
Publication statusPublished - 15 Jun 2009
MoE publication typeA1 Journal article-refereed

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