Edge turbulence in ISTTOK

Dudson, B D; Gracias, W A; Jorge, R; Nielsen, A H; Olsen, J M B; Ricci, P; Silva, C; Tamain, P; Ciraolo, G; Fedorczak, N; Galassi, D; Madsen, J; Militello, F; Nace, N; Rasmussen, J J; Riva, Fabio Matteo; Serre, E

doi:10.1088/1361-6587/abe21d

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Riva_2021_IOP_Edge turbulence in ISTTOK.pdf

Journal article

Edge turbulence in ISTTOK : a multi-code fluid validation

Dudson, B D York Plasma Institute, Department of Physics, University of York, UK
Gracias, W A Universidad Carlos III de Madrid, Madrid, Spain
Jorge, R École Polytechnique Fédérale de Lausanne (EPFL), Swiss Plasma Center (SPC), Switzerland - Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, Portugal
Nielsen, A H Department of Physics, Technical University of Denmark, Denmark
Olsen, J M B Department of Physics, Technical University of Denmark, Denmark
Ricci, P École Polytechnique Fédérale de Lausanne (EPFL), Swiss Plasma Center (SPC), Switzerland
Silva, C Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, Portugal
Tamain, P IFRM, CEA Cadarache, St. Paul-lez-Durance, France
Ciraolo, G IFRM, CEA Cadarache, St. Paul-lez-Durance, France
Fedorczak, N IFRM, CEA Cadarache, St. Paul-lez-Durance, France
Galassi, D École Polytechnique Fédérale de Lausanne (EPFL), Swiss Plasma Center (SPC), Lausanne, Switzerland - Aix Marseille Univ, CNRS, Marseille, France
Madsen, J Department of Physics, Technical University of Denmark, Denmark
Militello, F CCFE, Culham Science Centre, Abingdon, Oxon, United Kingdom
Nace, N IFRM, CEA Cadarache, St. Paul-lez-Durance, France
Rasmussen, J J Department of Physics, Technical University of Denmark, Denmark
Riva, Fabio Matteo ORCID Istituto ricerche solari Aldo e Cele Daccò (IRSOL), Faculty of Informatics, Università della Svizzera italiana Switzerland - École Polytechnique Fédérale de Lausanne (EPFL), Swiss Plasma Center (SPC), Switzerland - CCFE, Culham Science Centre, Abingdon, Oxon, United Kingdom
Serre, E Aix Marseille Univ, CNRS, Centrale Marseille, Marseille, France

2021

Published in:

Plasma Physics and Controlled Fusion. - 2021, vol. 63, no. 5, p. 055013

English Fluid models used to study the edge plasma region need to be benchmarked against similar conditions given that models can strongly differ in complexity and therefore the results they produce. Via this validation study undertaken through the framework of EUROfusion Enabling Research, four state-of-the art models - GBS, Hermes/BOUT++, HESEL and TOKAM3X - are compared to experimental plasma turbulence measurements on the ISTTOK tokamak. Statistical comparisons of simulation and experiment data show that fluid models used here can replicate most of the experiment in terms of of Isat and Vf loat fluctuations despite their differences. Furthermore, it is shown that without including more complex information (like core turbulence information and domain geometry details and magnetic topological aspects) in fluid models, the results recovered vary from their experimental counterparts. Via the simulations using these codes, it is demonstrated that fluid models continue to be a good cost-effective tool in recovering many global aspects of edge plasma behaviour.

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