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22-27 October 2018
Mahatma Mandir Conference Centre
Asia/Kolkata timezone
CONFERENCE MATERIAL NOW AVAILABLE!

ELM and ELM-control Simulations

23 Oct 2018, 15:15
25m
Mahatma Mandir Conference Centre

Mahatma Mandir Conference Centre

Gandhinagar (nearest Airport: Ahmedabad), India
Overview OV - Overviews OV/4 Overview Magnetic Fusion

Speaker

Dr Stanislas Pamela (CCFE - UKAEA)

Description

Future devices like JT-60SA, ITER and DEMO require quantitative predictions of pedestal density and temperature levels, as well as divertor heat fluxes, to improve global confinement capabilities while preventing divertor erosion/melting in the planning of future experiments. Such predictions can be obtained from non-linear MHD codes like JOREK, for which systematic validation against current experiments is necessary. In this paper, we show the validation of ELM simulations with JOREK using quantitative comparison against JT-60U experiments. Note this is the first JOREK validation of ELM simulations at exact Spitzer resistivity. In addition, we demonstrate the essential importance of the separatrix position, required for a successful agreement with experimental data. On the basis of this validation, we propose estimates of ELM size, ELM-induced divertor heat-fluxes, and pre-ELM pedestal pressure, for future JT-60SA scenarios.

Country or International Organization United Kingdom
Paper Number OV/4-4

Primary author

Dr Stanislas Pamela (CCFE - UKAEA)

Co-authors

Dr Elena de la Luna (CIEMAT) Dr Guido Huijsmans (ITER Organization) Dr Hajime Urano (QST) Dr Jeronimo Garcia (CEA IRFM) Dr Matthias Hoelzl (Max-Planck-Institut für Plasmaphysik, Boltzmannstrasse 2, D-85748 Garching, Germany) Dr NOBUYUKI AIBA (Japan Atomic Energy Agency) Dr Shimpei Futatani (Department of Physics, Universitat Politècnica de Catalunya (UPC), Barcelona) Mrs Siobhan Smith (Culham Centre for Fusion Energy, Abingdon OX143DB, United Kingdom)

Presentation Materials

Paper