Resistive wall mode in cylindrical plasmas in the presence of surface currents

被引：1

作者：

Cui, Shaoyan ^{[1
]}

Lu, Gaimin ^{[2
]}

Iu, Yue L. ^{[3
]}

机构：

[1] Ludong Univ, Sch Math & Informat, Yantai 264025, Peoples R China

[2] SW Inst Phys, Chengdu 610041, Peoples R China

[3] Dalian Univ Technol, Key Lab Mat Modificat Laser Ion & Electron Beams, Sch Phys & Optoelect Technol, Minist Educ, Dalian 116024, Peoples R China

来源：

JOURNAL OF PLASMA PHYSICS | 2012年 / 78卷

关键词：

MHD-INSTABILITY; STABILIZATION; STABILITY; TOKAMAKS; IDEAL; FLOW;

D O I：

10.1017/S0022377812000104

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：

Stability of the resistive wall mode in cylindrical plasmas confined by surface currents is investigated for the delta-function and step-function equilibrium surface-current profiles. For the former, it is shown that the perturbations oscillate and even decay for all locations of the initial perturbation. The entire system is stable and the plasma flow has little effect. For the step-function surface-current distribution, it is found that the thicker the surface current layer, the more stable is the system even if the largest initial perturbation is located on the rational surface, but the plasma flow also has little effect on the system.

引用

页码：501 / 506

页数：6

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