Development of a Lagrange–Monte Carlo scheme for fluid modelling of SOL/divertor plasmas

Ryoko Tatsumi, Alexei Runov, Ralf Schneider, Akiyoshi Hatayama

Research output: Contribution to journalArticle

Abstract

Aiming at reproducing plasma detachment states with a three-dimensional fluid code, we are developing the Lagrange–Monte Carlo (LG-MC) scheme. It integrates two schemes, namely a Lagrange scheme for the convective part and a Monte Carlo scheme for the diffusive part. One advantage of the scheme is the semi-implicit treatment of the pressure gradient term in the convective part, which is essential to solve pure convective problems. As a first step, several one-dimensional (1D) test calculations have been carried out so far. In this paper, results of the two preliminary tests are presented: (a) a test for the Lagrange scheme solving convective equations, and (b) a test for the integrated LG-MC scheme solving a convection–conduction equation. These tests confirm the conservative property of the Lagrange scheme and the reliability of the integrated LG-MC scheme.

Original languageEnglish
Pages (from-to)675-680
Number of pages6
JournalContributions to Plasma Physics
Volume58
Issue number6-8
DOIs
Publication statusPublished - 2018 Jul 1

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fluids
pressure gradients
detachment

Keywords

  • fluid simulation
  • Lagrange–Monte Carlo scheme
  • SOL/divertor plasma

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Development of a Lagrange–Monte Carlo scheme for fluid modelling of SOL/divertor plasmas. / Tatsumi, Ryoko; Runov, Alexei; Schneider, Ralf; Hatayama, Akiyoshi.

In: Contributions to Plasma Physics, Vol. 58, No. 6-8, 01.07.2018, p. 675-680.

Research output: Contribution to journalArticle

Tatsumi, Ryoko ; Runov, Alexei ; Schneider, Ralf ; Hatayama, Akiyoshi. / Development of a Lagrange–Monte Carlo scheme for fluid modelling of SOL/divertor plasmas. In: Contributions to Plasma Physics. 2018 ; Vol. 58, No. 6-8. pp. 675-680.
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