Numerical Simulation Study of the Magnetic Flux Tube Expansion on the Divertor Plasma Parameters by the LINDA Code

Md Shahinul Islam, Yousuke Nakashima, Seiji Ishiguro, Kazuo Hoshino, Akiyoshi Hatayama, Hiroki Hasegawa, Mizuki Sakamoto

Research output: Contribution to journalArticlepeer-review

Abstract

In this research, we investigate the effect of magnetic flux tube expansion on the divertor plasma parameters by using the fluid code “LINDA”. A comparison between the cylindrical flux tube (without the magnetic flux expansion) and the expansion magnetic flux tube has been undertaken. The aim of the study is to understand the impact of magnetic field expansion on the divertor physics by using the LINDA fluid code. The plasma density (ni) is decreased and parallel velocity is increased (ui||) toward the target plate with the expansion of magnetic field lines near the target plate. The heat and particle fluxes are reduced significantly on the target plate in the case of the expansion mesh configuration. For the case of cylindrical mesh, advection becomes stronger with the decreasing distance from the target plate. In the case of expansion mesh, diffusion is stronger with the decreasing distance from the target plate. These outcomes clearly indicate the effect of the magnetic field structure on the divertor plasma parameters.

Original languageEnglish
Pages (from-to)1-5
Number of pages5
JournalPlasma and Fusion Research
Volume16
DOIs
Publication statusPublished - 2021

Keywords

  • fluid simulation
  • heat flux
  • ion flux
  • LINDA code
  • magnetic flux expansion
  • plasma detachment

ASJC Scopus subject areas

  • Condensed Matter Physics

Fingerprint

Dive into the research topics of 'Numerical Simulation Study of the Magnetic Flux Tube Expansion on the Divertor Plasma Parameters by the LINDA Code'. Together they form a unique fingerprint.

Cite this