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Application of a two-fluid two-point model to SolEdge2D-EIRENE simulations of TCV H-mode plasma

Authors :
G. Ciraolo
Roberto Maurizio
H. De Oliveira
F. Nespoli
Matthias Komm
M. Faitsch
Nicolas Fedorczak
Benoit Labit
Eric Serre
Yannick Marandet
M. Valentinuzzi
H. Bufferand
S. Elmore
Laboratoire de Mécanique, Modélisation et Procédés Propres (M2P2)
Aix Marseille Université (AMU)-École Centrale de Marseille (ECM)-Centre National de la Recherche Scientifique (CNRS)
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)
Centre National de la Recherche Scientifique (CNRS)-École Centrale de Marseille (ECM)-Aix Marseille Université (AMU)
Source :
Nuclear Materials and Energy, Nuclear Materials and Energy, 2019, 18, pp.29-34. ⟨10.1016/j.nme.2018.11.026⟩, Nuclear Materials and Energy, Elsevier, 2019, 18, pp.29-34. ⟨10.1016/j.nme.2018.11.026⟩, Nuclear Materials and Energy, Vol 18, Iss, Pp 29-34 (2019)
Publication Year :
2019
Publisher :
HAL CCSD, 2019.

Abstract

The edge and scrape-off layer (SOL) plasma of the inter-ELM phase of an H-mode discharge from the TCV tokamak is modeled with the transport code SolEdge2D-EIRENE (Bufferand et al. Nuclear Fusion 55 (2015)). The numerical simulations, in presence and in absence of C impurities sputtered from the first wall, are presented and compared with the experiments, finding an overall good agreement. The application of the standard two-point model to the simulation results leads to an apparent momentum gain along the divertor leg. A two-fluid two-point model featuring thermally decoupled ions and electrons is introduced and applied to the simulation results, overcoming this apparent discrepancy. Keywords: Scrape-off layer, Plasma, Simulations, Transport, Two-point model, TCV

Details

Language :
English
ISSN :
23521791
Database :
OpenAIRE
Journal :
Nuclear Materials and Energy, Nuclear Materials and Energy, 2019, 18, pp.29-34. ⟨10.1016/j.nme.2018.11.026⟩, Nuclear Materials and Energy, Elsevier, 2019, 18, pp.29-34. ⟨10.1016/j.nme.2018.11.026⟩, Nuclear Materials and Energy, Vol 18, Iss, Pp 29-34 (2019)
Accession number :
edsair.doi.dedup.....16ab4e7bfa615bda332f21b9608cd4d7
Full Text :
https://doi.org/10.1016/j.nme.2018.11.026⟩