First efforts in numerical modeling of tungsten migration in WEST with SolEdge2D-EIRENE and ERO2.0

A. Gallo; A. Sepetys; J. Romazanov; Y. Marandet; S. Brezinsek; H. Bufferand; G. Ciraolo; Y. Corre; S. Ertmer; N. Fedorczak; J. Gunn; A. Kirschner; C. Martin; O. Meyer; G.J. van Rooij; P. Roubin; E. Tsitrone

doi:10.1088/1402-4896/ab4308

First efforts in numerical modeling of tungsten migration in WEST with SolEdge2D-EIRENE and ERO2.0

A. Gallo (Corresponding author), A. Sepetys, J. Romazanov, Y. Marandet, S. Brezinsek, H. Bufferand, G. Ciraolo, Y. Corre, S. Ertmer, N. Fedorczak, J. Gunn, A. Kirschner, C. Martin, O. Meyer, G.J. van Rooij, P. Roubin, E. Tsitrone

Elementary Processes in Gas Discharges

Research output: Contribution to journal › Conference article › peer-review

19 Citations (Scopus)

Abstract

The first simulations of tungsten migration in WEST are performed with the SolEdge2D-EIRENE and ERO2.0 codes to support experimental investigations into the erosion of plasma-facing components and plasma impurity content. The impact of varying the background density on (i) the amount of tungsten penetrating the confined plasma, (ii) the promptly redeposited fraction, and (iii) the erosion and deposition patterns on the wall, is investigated under the working assumptions of a simplified toroidally symmetric wall contour, typical L-mode values of the transport coefficients, and deuterium plasma with a 1% oxygen content. The lower divertor is found to be the main zone of net tungsten erosion and deposition. This pattern is reduced at high background density due to the higher promptly redeposited fraction.

Original language	English
Article number	014013
Number of pages	6
Journal	Physica Scripta
Volume	2020
Issue number	T171
DOIs	https://doi.org/10.1088/1402-4896/ab4308
Publication status	Published - 27 Feb 2020
Event	17th International Conference on Plasma-Facing Materials and Components for Fusion Applications, PFMC 2019 - Eindhoven, Netherlands Duration: 20 May 2019 → 24 May 2019

Funding

This work has been carried out within the framework of the EUROfusion Consortium and has received funding from the Euratom research and training programme 2014-2018 and 2019-2020 under grant agreement No 633053. The views and opinions expressed herein do not necessarily reflect those of the European Commission. Work performed under EURO-fusion WP PFC.

Funders	Funder number
European Union's Horizon 2020 - Research and Innovation Framework Programme	633053

Keywords

Ero2.0
Material migration
Nuclear fusion
Plasma-wall interaction
Soledge2d-eirene
Tungsten
West

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10.1088/1402-4896/ab4308

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Gallo, A., Sepetys, A., Romazanov, J., Marandet, Y., Brezinsek, S., Bufferand, H., Ciraolo, G., Corre, Y., Ertmer, S., Fedorczak, N., Gunn, J., Kirschner, A., Martin, C., Meyer, O., van Rooij, G. J., Roubin, P., & Tsitrone, E. (2020). First efforts in numerical modeling of tungsten migration in WEST with SolEdge2D-EIRENE and ERO2.0. Physica Scripta, 2020(T171), Article 014013. https://doi.org/10.1088/1402-4896/ab4308

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title = "First efforts in numerical modeling of tungsten migration in WEST with SolEdge2D-EIRENE and ERO2.0",

abstract = "The first simulations of tungsten migration in WEST are performed with the SolEdge2D-EIRENE and ERO2.0 codes to support experimental investigations into the erosion of plasma-facing components and plasma impurity content. The impact of varying the background density on (i) the amount of tungsten penetrating the confined plasma, (ii) the promptly redeposited fraction, and (iii) the erosion and deposition patterns on the wall, is investigated under the working assumptions of a simplified toroidally symmetric wall contour, typical L-mode values of the transport coefficients, and deuterium plasma with a 1% oxygen content. The lower divertor is found to be the main zone of net tungsten erosion and deposition. This pattern is reduced at high background density due to the higher promptly redeposited fraction.",

keywords = "Ero2.0, Material migration, Nuclear fusion, Plasma-wall interaction, Soledge2d-eirene, Tungsten, West",

author = "A. Gallo and A. Sepetys and J. Romazanov and Y. Marandet and S. Brezinsek and H. Bufferand and G. Ciraolo and Y. Corre and S. Ertmer and N. Fedorczak and J. Gunn and A. Kirschner and C. Martin and O. Meyer and {van Rooij}, G.J. and P. Roubin and E. Tsitrone",

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Gallo, A, Sepetys, A, Romazanov, J, Marandet, Y, Brezinsek, S, Bufferand, H, Ciraolo, G, Corre, Y, Ertmer, S, Fedorczak, N, Gunn, J, Kirschner, A, Martin, C, Meyer, O, van Rooij, GJ, Roubin, P & Tsitrone, E 2020, 'First efforts in numerical modeling of tungsten migration in WEST with SolEdge2D-EIRENE and ERO2.0', Physica Scripta, vol. 2020, no. T171, 014013. https://doi.org/10.1088/1402-4896/ab4308

TY - JOUR

T1 - First efforts in numerical modeling of tungsten migration in WEST with SolEdge2D-EIRENE and ERO2.0

AU - Gallo, A.

AU - Sepetys, A.

AU - Romazanov, J.

AU - Marandet, Y.

AU - Brezinsek, S.

AU - Bufferand, H.

AU - Ciraolo, G.

AU - Corre, Y.

AU - Ertmer, S.

AU - Fedorczak, N.

AU - Gunn, J.

AU - Kirschner, A.

AU - Martin, C.

AU - Meyer, O.

AU - van Rooij, G.J.

AU - Roubin, P.

AU - Tsitrone, E.

PY - 2020/2/27

Y1 - 2020/2/27

N2 - The first simulations of tungsten migration in WEST are performed with the SolEdge2D-EIRENE and ERO2.0 codes to support experimental investigations into the erosion of plasma-facing components and plasma impurity content. The impact of varying the background density on (i) the amount of tungsten penetrating the confined plasma, (ii) the promptly redeposited fraction, and (iii) the erosion and deposition patterns on the wall, is investigated under the working assumptions of a simplified toroidally symmetric wall contour, typical L-mode values of the transport coefficients, and deuterium plasma with a 1% oxygen content. The lower divertor is found to be the main zone of net tungsten erosion and deposition. This pattern is reduced at high background density due to the higher promptly redeposited fraction.

AB - The first simulations of tungsten migration in WEST are performed with the SolEdge2D-EIRENE and ERO2.0 codes to support experimental investigations into the erosion of plasma-facing components and plasma impurity content. The impact of varying the background density on (i) the amount of tungsten penetrating the confined plasma, (ii) the promptly redeposited fraction, and (iii) the erosion and deposition patterns on the wall, is investigated under the working assumptions of a simplified toroidally symmetric wall contour, typical L-mode values of the transport coefficients, and deuterium plasma with a 1% oxygen content. The lower divertor is found to be the main zone of net tungsten erosion and deposition. This pattern is reduced at high background density due to the higher promptly redeposited fraction.

KW - Ero2.0

KW - Material migration

KW - Nuclear fusion

KW - Plasma-wall interaction

KW - Soledge2d-eirene

KW - Tungsten

KW - West

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DO - 10.1088/1402-4896/ab4308

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SN - 0031-8949

VL - 2020

JO - Physica Scripta

JF - Physica Scripta

IS - T171

M1 - 014013

T2 - 17th International Conference on Plasma-Facing Materials and Components for Fusion Applications, PFMC 2019

Y2 - 20 May 2019 through 24 May 2019

ER -

First efforts in numerical modeling of tungsten migration in WEST with SolEdge2D-EIRENE and ERO2.0

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