模与模之间的相互作用对电阻壁模稳定性的影响

核聚变与等离子体物理 ›› 2013, Vol. 33 ›› Issue (2): 102-106.

模与模之间的相互作用对电阻壁模稳定性的影响

陈龙溪，吴斌

(1. 山东青年政治学院信息工程学院，济南 250103；2. 山东省信息安全与智能控制高校重点实验室，济南 250103；3. 中国科学院等离子体物理研究所，合肥 230031)

收稿日期:2012-08-30 修回日期:2012-11-19 出版日期:2013-06-15 发布日期:2013-06-14
作者简介:陈龙溪(1984-)，男，山东莒县人，博士，讲师，主要从事磁流体不稳定性理论与数值模拟研究。
基金资助:
山东省自然科学基金资助项目(ZR2012AQ025)；国家自然科学基金资助项目(10975160)

Effect of modes interaction on the resistive wall mode stability

CHEN Long-xi, WU Bin

(1. School of Information Engineering, Shandong Youth University of Political Science, Jinan 250103; 2. Key Lab of information security and intelligent control in Universities of Shandong, Jinan 250103; 3. Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031)

Received:2012-08-30 Revised:2012-11-19 Online:2013-06-15 Published:2013-06-14

摘要/Abstract

摘要：

研究了模与模之间的相互作用对电阻壁模(RWM)稳定性的影响。当存在多个模的相互作用时，最不稳定的(3, 1)模的线性增长率有所下降。经过线性演化后，因磁力线在壁上的挤压，电阻壁模进入非线性饱和状态。与单个模的演化相比，多个模存在时，(3, 1)模的饱和度会下降，(5, 2)模的磁能会有相应的增长，而(2, 1)模磁能饱和度变化不大。

关键词: 电阻壁模, 相互作用, 非线性演化, 饱和

Abstract:

Effects of modes interaction on the resistive wall mode (RWM) stability are studied. When considering the modes interaction effects, the linear growth rate of the most unstable (3, 1) mode decreases. After linear evolution, the RWM saturates at the nonlinear phase. The saturation can be attributed to flux piling up on the resistive wall. When some modes exist, the (3, 1) mode saturates at lower level compared with single mode evolution. Meanwhile, the magnetic energy of the (5, 2) mode increases correspondently, but the magnetic energy saturation level of the (2, 1) mode changes weakly.

Key words: Resistive wall mode, Interaction, Nonlinear evolution, Saturation

中图分类号:

O534.2

陈龙溪，吴斌. 模与模之间的相互作用对电阻壁模稳定性的影响[J]. 核聚变与等离子体物理, 2013, 33(2): 102-106.

CHEN Long-xi, WU Bin. Effect of modes interaction on the resistive wall mode stability[J]. NUCLEAR FUSION AND PLASMA PHYSICS, 2013, 33(2): 102-106.

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