Plasma and Fusion Research

Volume 15, 1403003 (2020)

Regular Articles

Development of a Three Dimensional Plasma Fluid Code Using a Lagrange-Monte-Carlo Scheme
Ryoko TATSUMI, Alexei RUNOV1), Ralf SCHNEIDER2), Kazuo HOSHINO and Akiyoshi HATAYAMA
Faculty of Science and Technology, Keio University, Yokohama 223-8522, Japan
1)
Max-Planck-Institute for Plasma Physics, Greifswald, Germany
2)
University of Greifswald, Greifswald, Germany
(Received 28 August 2019 / Accepted 17 November 2019 / Published 17 February 2020)

Abstract

We are developing a Lagrange (LG)-Monte-Carlo (MC) scheme for three-dimensional (3D) SOL/Divertor plasma fluid modeling. By using test particles, the scheme is suitable for handling 3D complex geometries. The semi-implicit treatment of the pressure gradient term enables us to improve the robustness of the coupling of the continuity and the momentum equations. Detailed numerical checks of the integrated scheme of LG-MC have been done for a simple 1D geometry. Benchmark tests between the new LG-MC and a conventional Finite-Volume scheme were carried out and good agreement was obtained. A first test calculation for a 3D cylindrical geometry has been also successfully done.

Keywords

SOL/Divertor plasma, fluid simulation, Lagrange scheme

DOI: 10.1585/pfr.15.1403003

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