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核聚变与等离子体物理 ›› 2014, Vol. 34 ›› Issue (2): 97-101.

• 等离子体物理 •    下一篇

电阻磁流体中磁岛演化的长时间数值模拟

王刚,许健强,彭晓东   

  1. (1. 四川工商职业技术学院,成都 611837;2. 核工业西南物理研究院,成都 610041)
  • 收稿日期:2013-07-19 修回日期:2014-02-12 出版日期:2014-06-15 发布日期:2014-06-16
  • 作者简介:王刚(1965-),男,四川成都人,讲师,从事物理现象的数值模拟研究。
  • 基金资助:

    国家自然科学基金资助项目(11275061)

Long time numerical simulation for evolution of magnetic islands in the resistive magnetic fluid

WANG Gang1, XU Jian-qiang2, PENG Xiao-dong2   

  1. (1. Sichuan Technology and Business College, Chengdu 611837; 2. Southwestern Institute of Physics, Chengdu 610041)
  • Received:2013-07-19 Revised:2014-02-12 Online:2014-06-15 Published:2014-06-16

摘要:

基于磁流体理论利用CIP方法数值对电阻磁流体中的磁岛演化动力学行为进行了长时间模拟。研究发现,磁岛饱和后流体演化并未结束,磁场重联将导致流体的宏观剪切流动。这一物理图象可用于解释托卡马克等离子体L-H模转换过程中观察到的磁流体行为。

关键词: 磁场重联, 电阻磁流体, 数值模拟

Abstract:

Employing the CIP method for the numerical simulation, the behavior of the magnetic island evolution in the resistive magnetic fluid was simulated for long time based on the theory of magnetic fluid. It is found that fluid evolution after magnetic island saturation has not ended yet, magnetic reconnection will lead to a macroscopic shear flow. This physical picture can be used to explain the magnetic fluid behavior observed during the tokamak plasma L-H mode transition.

Key words: Magnetic reconnection, Resistive magnetic fluid, Numerical simulation

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