Modelling of ion kinetic effects for SOL flow formation

T. Takizuka, K. Hoshino, K. Shimizu, M. Yagi

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

The plasma flow in the scrape-off layer (SOL) plays an important role for the control of heat and particle including impurity in magnetic fusion reactors. SOL flow patterns have recently been studied by the particle simulations, and the effects of finite-orbit-size of ions are found to be essential for the flow-pattern formation [Takizuka et al., Nucl. Fusion 49, 075038 (2009)]. Based on these simulation results, a new model of the edge plasma flow is developed by introducing the "ion-orbit-induced flow" to the fluid equations. A tokamak plasma is divided into three regions; core region, transition layer and SOL region. The "ion-orbit-induced flow" is modeled by separating untapped part and trapped part, and by taking account the collision effect and poloidal distribution. The "ion-orbit-induced flow" becomes large at the edge region.

Original languageEnglish
Pages (from-to)267-272
Number of pages6
JournalContributions to Plasma Physics
Volume50
Issue number3-5
DOIs
Publication statusPublished - 2010 May
Externally publishedYes

Keywords

  • Kinetic effect
  • Modelling
  • SOL flow
  • SOL-divertor plasmas
  • Tokamak

ASJC Scopus subject areas

  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'Modelling of ion kinetic effects for SOL flow formation'. Together they form a unique fingerprint.

Cite this