First 3D modeling of tungsten erosion and migration in WEST discharges adopting a toroidally non-symmetric wall geometry
S. Di Genova
(1)
,
G. Ciraolo
(2)
,
A. Gallo
(2)
,
J. Romazanov
(3)
,
N. Fedorczak
(2)
,
H. Bufferand
(2)
,
P. Tamain
(2)
,
N. Rivals
(2)
,
Y. Marandet
(4)
,
S. Brezinsek
(3)
,
E. Serre
(1)
J. Romazanov
- Fonction : Auteur
- PersonId : 799707
- ORCID : 0000-0001-9439-786X
N. Fedorczak
- Fonction : Auteur
- PersonId : 1193028
- ORCID : 0000-0001-7123-7433
H. Bufferand
- Fonction : Auteur
- PersonId : 758229
- ORCID : 0000-0002-9731-5855
- IdRef : 170157318
P. Tamain
- Fonction : Auteur
- PersonId : 1227049
- ORCID : 0000-0003-2020-7685
N. Rivals
- Fonction : Auteur
- PersonId : 1227050
- ORCID : 0000-0002-4467-5857
S. Brezinsek
- Fonction : Auteur
- PersonId : 777234
- ORCID : 0000-0002-7213-3326
Résumé
Numerical analyses are a key tool to investigate tungsten (W) sources and contamination in W Environment steady-state tokamak (WEST) plasma discharges. Modelling activity was performed in order to study W erosion and migration at WEST plasma-facing components (PFCs), using for the first time a toroidally asymmetric wall geometry provided by toroidally localized objects representing WEST outer limiter or antennae. 3D non-axisymmetric SOLEDGE transport simulations were performed with simplifying assumptions (pure Deuterium plasma, fluid model for neutrals) to reproduce WEST boundary plasma, and used as background for ERO2.0 simulations modelling W erosion, re-deposition, and migration. On the sides of the toroidally localized limiters/antennae, two thin W stripes were considered in order to model WEST W antennae protections. Simulations suggest antennae protections contribution to dominate W contamination in the considered simulations settings, highlighting the need of further analyses with different configurations using this kind of tools.
Domaines
Physique [physics]Format du dépôt | Fichier |
---|---|
Type de dépôt | Article dans une revue |
Titre |
en
First 3D modeling of tungsten erosion and migration in WEST discharges adopting a toroidally non-symmetric wall geometry
|
Résumé |
en
Numerical analyses are a key tool to investigate tungsten (W) sources and contamination in W Environment steady-state tokamak (WEST) plasma discharges. Modelling activity was performed in order to study W erosion and migration at WEST plasma-facing components (PFCs), using for the first time a toroidally asymmetric wall geometry provided by toroidally localized objects representing WEST outer limiter or antennae. 3D non-axisymmetric SOLEDGE transport simulations were performed with simplifying assumptions (pure Deuterium plasma, fluid model for neutrals) to reproduce WEST boundary plasma, and used as background for ERO2.0 simulations modelling W erosion, re-deposition, and migration. On the sides of the toroidally localized limiters/antennae, two thin W stripes were considered in order to model WEST W antennae protections. Simulations suggest antennae protections contribution to dominate W contamination in the considered simulations settings, highlighting the need of further analyses with different configurations using this kind of tools.
|
Auteur(s) |
S. Di Genova
1
, G. Ciraolo
2
, A. Gallo
2
, J. Romazanov
3
, N. Fedorczak
2
, H. Bufferand
2
, P. Tamain
2
, N. Rivals
2
, Y. Marandet
4
, S. Brezinsek
3
, E. Serre
1
1
M2P2 -
Laboratoire de Mécanique, Modélisation et Procédés Propres
( 199963 )
- Technopôle de Château-Gombert, 38, rue Frédéric Joliot-Curie 13 451 Marseille cedex 13
- France
2
IRFM -
Institut de Recherche sur la Fusion par confinement Magnétique
( 53955 )
- CEA Cadarache, 13108 Saint-Paul-lèz-Durance
- France
3
FZJ -
Forschungszentrum Jülich GmbH | Centre de recherche de Jülich | Jülich Research Centre
( 251883 )
- Wilhelm-Johnen-Straße, 52428 Jülich
- Allemagne
4
PIIM -
Physique des interactions ioniques et moléculaires
( 221285 )
- Campus de Saint-Jérôme
Aile 3, Service 322
Avenue Escadrille Normandie-Niémen
13397 Marseille cedex 20
- France
|
URL éditeur |
https://www.sciencedirect.com/science/article/pii/S2352179122002216?via%3Dihub
|
Langue du document |
Anglais
|
Nom de la revue |
|
Date de publication |
2023-03
|
Volume |
34
|
Page/Identifiant |
101340
|
Vulgarisation |
Non
|
Comité de lecture |
Oui
|
Audience |
Internationale
|
Projet(s) Européen(s) |
|
Collaboration/Projet |
|
Domaine(s) |
|
DOI | 10.1016/j.nme.2022.101340 |
Origine :
Fichiers produits par l'(les) auteur(s)
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