Multiscale modeling approach for radial particle transport in large-scale simulations of the tokamak plasma edge

• Published in: Procedia Computer Science
• Main Authors: Hasenbeck, Felix, Reiser, Dirk, Ghendrih, Philippe, Marandet, Yannick, Tamain, Patrick, Moeller, Annette, Reiter, Detlev
• Other Authors: Institut de Recherche sur la Fusion par confinement Magnétique (IRFM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Physique des interactions ioniques et moléculaires (PIIM), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS), Institute of Energy and Climate Research - Plasma Physics (IEK-4), Forschungszentrum Jülich GmbH, Helmholtz-Gemeinschaft = Helmholtz Association-Helmholtz-Gemeinschaft = Helmholtz Association, Koziel, S and Leifsson, L and Lees, M and Krzhizhanovskaya, VV and Dongarra, J and Sloot, PMA
• Format: Conference Object
• Language: English
• Published: HAL CCSD 2015
• Subjects: [PHYS]Physics [physics]; Iceland
• Online Access: https://hal.archives-ouvertes.fr/hal-01455294; https://doi.org/10.1016/j.procs.2015.05.282

15th Annual International Conference on Computational Science (ICCS), Reykjavik Univ, Reykjavik, ICELAND, JUN 01-03, 2015 International audience A multiscale model for an improved description of radial particle transport described by the density continuity equation in large-scale plasma edge simulations for tokamak fusion devices is presented. It includes the effects of mesoscale drift-fluid dynamics on the macroscale profiles and vice versa. The realization of the multiscale model in form of the coupled code system B2-ATTEMPT is outlined. A procedure employed to efficiently determine the averaged mesoscale terms using a nonparametric trend test, the Reverse Arrangements Test, is described. Results of stationary, self-consistent B2-ATTEMPT simulations are compared to prior simulations for experiments at the TEXTOR tokamak, making a first evaluation of the predicted magnitude of radial particle transport possible.