SOLPS5 modelling of the type III ELMing H-mode on TCV

Although ohmic H-modes have long been produced on TCV and the effects of ELMs at the divertor target studied in some detail, no attempt has yet been made to model the scrape-off layer (SOL) in these plasmas. This paper describes details of the first such efforts in which simulations of the inter-ELM...

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Bibliographic Details
Published in:Journal of nuclear materials 2007-06, Vol.363-365, p.1037-1043
Main Authors: Gulejová, B., Pitts, R.A., Wischmeier, M., Behn, R., Coster, D., Horacek, J., Marki, J.
Format: Article
Language:English
Subjects:
Applied sciences
B2–EIRENE
Controled nuclear fusion plants
Cross-field transport
Edge modelling
ELM
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Installations for energy generation and conversion: thermal and electrical energy
SOL transport
TCV
Transport barrier
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Summary:Although ohmic H-modes have long been produced on TCV and the effects of ELMs at the divertor target studied in some detail, no attempt has yet been made to model the scrape-off layer (SOL) in these plasmas. This paper describes details of the first such efforts in which simulations of the inter-ELM phases using the coupled fluid-Monte Carlo SOLPS5 code (without drifts) are constrained by careful upstream Thomson scattering and Langmuir probe profiles. Simulated divertor profiles are compared with Langmuir probes and fast IR camera measurements at the targets. To account for the very differing transport rates in the edge pedestal and main SOL regions, radial variation of edge transport coefficients has been introduced in the simulations. Similarly, it is found that transport in the main chamber and divertor regions must be separately adjusted to provide an acceptable code-experiment match.
ISSN:0022-3115
1873-4820
DOI:10.1016/j.jnucmat.2007.01.263