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Modelling of Ion Kinetic Effects for SOL Flow Formation

被引：6
作者：
Takizuka, T. [1 ]
Hoshino, K. [1 ]
Shimizu, K. [1 ]
Yagi, M. [2 ]
机构：
[1] Japan Atom Energy Agcy, Naka, Ibaraki 3110193, Japan
[2] Kyushu Univ, Appl Mech Res Inst, Kasuga, Fukuoka 8168580, Japan
来源：
CONTRIBUTIONS TO PLASMA PHYSICS | 2010年 / 50卷 / 3-5期
关键词：
SOL-divertor plasmas; tokamak; SQL flow; kinetic effect; modelling; SCRAPE-OFF-LAYER; DIVERTOR TOKAMAKS; BOUNDARY-CONDITIONS; ELECTRIC-FIELDS; EDGE PLASMAS; SIMULATION; TRANSPORT; PHYSICS; CODES; JET;
D O I：
10.1002/ctpp.201010044
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
The plasma flow in the scrape-off layer (SQL) plays an important role for the control of heat and particle including impurity in magnetic fusion reactors. SQL 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 SQL region. The "ion-orbit-induced flow" is modeled by separating untrapped 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. (C) 2010 WILEY-VCH Verlag GmbH & Co. KGaA. Weinheim
引用
收藏
页码：267 / 272
页数：6
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