Physics and stabilization of resistive wall modes in tokamaks

被引:23
作者
Bondeson, A [1 ]
Liu, YQ
Gregoratto, D
Fransson, CM
Gribov, Y
机构
[1] Chalmers Univ Technol, Dept Electromagnet, EURATOM, VR Fus Associat, S-41296 Gothenburg, Sweden
[2] Chalmers Univ Technol, Dept Signals & Syst, Gothenburg, Sweden
[3] ITER Naka Joint Work Site, Phys Unit, Naka, Ibaraki, Japan
关键词
D O I
10.1088/0741-3335/45/12A/017
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 theory of resistive wall modes (RWMs) is discussed and compared with experimental results. Special attention is given to the possibilities of stabilizing the RWM by plasma rotation and active feedback. A simple cylindrical model is used to illustrate various aspects of active control. Fully toroidal computations are also presented, including predictions for RWM stabilization in ITER. According to ideal MHD, robust control of RWM should be straightforward. Theory for stabilization by rotation is discussed, and a semikinetic model is introduced, which compares favourably with experiment. The semikinetic model produces somewhat lower rotation thresholds than previous models.
引用
收藏
页码:A253 / A267
页数:15
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