Home > Publications database > Benchmark of EDGE2D-EIRENE fluid plasma – kinetic neutral and SOLPS-ITER fluid plasma – fluid/kinetic neutral code suites for JET L-mode plasmas > print

001     891663
005     20240708132843.0
037 _ _ |a FZJ-2021-01649
100 1 _ |a Horsten, N.
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111 2 _ |a 24th International Conference on Plasma Surface Interactions in Controlled Fusion Devices (PSI 2020)
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|d 2021-01-25 - 2021-01-29
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245 _ _ |a Benchmark of EDGE2D-EIRENE fluid plasma – kinetic neutral and SOLPS-ITER fluid plasma – fluid/kinetic neutral code suites for JET L-mode plasmas
260 _ _ |c 2021
336 7 _ |a Abstract
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336 7 _ |a Conference Paper
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520 _ _ |a Benchmark of EDGE2D-EIRENE fluid plasma–kinetic neutral and SOLPS-ITER fluid plasma –fluid/kinetic neutral codesuitesfor JETL-mode plasmasN. Horstena,b, M.Grotha, D. Hartingb, G. Corriganb, W. Dekeyserc, I. ParadelaPéreza,d,M. Blommaertc,S. Wiesene,S. Aleiferisf,b, S. Marseng,D. Borodine,E.de la Lunah,b, A.Hubere,b,J. Karhunena,b, andJET Contributors*aAalto University,Departmentof Applied Physics,Espoo, FinlandbCCFE, Culham Science Centre, Abingdon,United KingdomcKULeuven, Department of Mechanical Engineering, Leuven, BelgiumdMax-Planck-Institut für Plasmaphysik, Garching,GermanyeForschungszentrum Jülich,Institut für Energie-und Klimaforschung,Jülich,Germanyf NationalCentre for Scientific Research “Demokritos”, Fusion Technology Group, Athens, GreecegMax-Planck-Institut für Plasmaphysik, Greifswald,Germany,hLaboratorioNacional de Fusión, Madrid, Spainniels.horsten@aalto.fiFor aJET-ITER like wallL-modelow-recycling plasmafrom Ref. [1], SOLPS-ITERpredictsa10% higher particle flux and a 30% higher total energyfluxtothedivertor targetscompared to EDGE2D-EIRENE for nearly identical inputparameter settings. In this contribution,we describe the causes for these discrepanciesin low-recycling, high-recycling and detached divertor conditions.The simulationsare validated against Langmuir probe data at the divertor targetsfor an electron density scan at outer midplane separatrix.In addition, we explorethe performance ofthe spatially hybrid fluid-kinetic approachin SOLPS-ITER, where a deterministicfluid modelfor the deuteriumatoms in the plasma grid region is coupled to a kinetic Monte Carlo model in the vacuum regionsnear the main chamber wall and in the far private flux region. Prior work has proventhe accuracy of a fluid neutral approximationforion-atom charge-exchange dominated cases[2] and theCPU time reduction potentialwith at leasta factor fourby using a spatially hybrid model [3].In contrast to Ref. [3], in whichonly a simplified rectangular slab casewas considered,without explicit treatment of the molecules, we apply the hybrid model for thedeuterium atomsin arealistic JET geometry. Firstly, the non-orthogonality of the numerical grid in combination with the isotropic character of the neutral particles requires the use of a 9-point stencil [4]. Secondly, the assumption of dominant neutral flow parallel to the magnetic field due to ample ion-atom charge-exchange collisions is verified in the presence of electromagnetic drifts.Finally, thehybrid model forthe atoms is coupled to a full kinetic model for the molecules.[1] M. Groth,et al., Nuclear Fusion 53 (2013) 093016[2] N. Horsten, et al., Nuclear Fusion57(2017) 116043[3] M. Blommaert, et al.,Nuclear Materials and Energy 19 (2019) 28-33[4] W. Dekeyser, et al.,NuclearMaterials and Energy 18 (2019) 125-130*See the author list of E. Joffrin et al., accepted for publication in Nuclear Fusion Special issue 2019,
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700 1 _ |a Groth, M.
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700 1 _ |a Harting, D.
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700 1 _ |a Corrigan, G.
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700 1 _ |a Dekeyser, W.
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700 1 _ |a Paradela Pérez, I.
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700 1 _ |a Blommaert, M.
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700 1 _ |a Wiesen, S.
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700 1 _ |a Aleiferis, S.
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700 1 _ |a Marsen, S.
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700 1 _ |a Borodin, D.
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700 1 _ |a de la Luna, E.
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700 1 _ |a Huber, Alexander
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700 1 _ |a Karhunen, J.
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