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

TitleFirst efforts in numerical modeling of tungsten migration in WEST with SolEdge2D-EIRENE and ERO2.0
Publication TypeJournal Article
Year of Publication2020
AuthorsA. Gallo, A. Sepetys, J. Romazanov, Y. Marandet, S. Brezinsek, H. Bufferand, G. Ciraolo, Y. Corre, S. Ertmer, N. Fedorczak, J.P Gunn, A. Kirschner, C. Martin, O. Meyer, G.J van Rooij, P. Roubin, E. Tsitrone, EUROPFC team, WEST team
JournalPhysica Scripta
Volume95
IssueT171
Pagination014013
Date Published01/2020
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.

DOI10.1088/1402-4896/ab4308
Division

MaSF

Department

NFC

PID

3c76dfab6d711ee3e20d3fe740ff721d

Alternate TitlePhys. Scr.

Go back one page.