中国物理B ›› 2013, Vol. 22 ›› Issue (7): 75203-075203.doi: 10.1088/1674-1056/22/7/075203

• PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES • 上一篇    下一篇

Effect of shear equilibrium flow in Tokamak plasma on resistive wall modes

李莉, 刘悦   

  1. Key Laboratory of Materials Modification by Laster, Ion and Electron Beams, Ministry of Education, School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian, 116024, China
  • 收稿日期:2012-11-05 修回日期:2012-12-04 出版日期:2013-06-01 发布日期:2013-06-01
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11105065 and 11275041) and the National Basic Research Program of China (Grant Nos. 2008CB717801, 2008CB787103, 2009GB105004, and 2010GB106002).

Effect of shear equilibrium flow in Tokamak plasma on resistive wall modes

Li Li (李莉), Liu Yue (刘悦)   

  1. Key Laboratory of Materials Modification by Laster, Ion and Electron Beams, Ministry of Education, School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian, 116024, China
  • Received:2012-11-05 Revised:2012-12-04 Online:2013-06-01 Published:2013-06-01
  • Contact: Li Li E-mail:lil@mail.dlut.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11105065 and 11275041) and the National Basic Research Program of China (Grant Nos. 2008CB717801, 2008CB787103, 2009GB105004, and 2010GB106002).

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摘要： A code named LARWM with non-ideal magnetohydrodynamic equations in cylindrical model is used to describe the instability in Tokamak plasma surrounded by a conducting wall with finite resistivity. We mainly take three factors related to the shear equilibrium plasma flow into consideration to study the stabilizing effect of the shear flow on the resistive wall modes (RWMs). The three factors are the velocity amplitude of flow, the shear rate of flow on plasma surface, and the inertial energy of equilibrium plasma flow. In addition, a local shear plasma flow is also calculated by the LARWM code. Consequently, it is found that the inertial energy of the shear equilibrium plasma flow has an important role in the stabilization of the RWMs.

关键词: Tokamak plasma, shear equilibrium flow, resistive wall modes

Abstract: A code named LARWM with non-ideal magnetohydrodynamic equations in cylindrical model is used to describe the instability in Tokamak plasma surrounded by a conducting wall with finite resistivity. We mainly take three factors related to the shear equilibrium plasma flow into consideration to study the stabilizing effect of the shear flow on the resistive wall modes (RWMs). The three factors are the velocity amplitude of flow, the shear rate of flow on plasma surface, and the inertial energy of equilibrium plasma flow. In addition, a local shear plasma flow is also calculated by the LARWM code. Consequently, it is found that the inertial energy of the shear equilibrium plasma flow has an important role in the stabilization of the RWMs.

Key words: Tokamak plasma, shear equilibrium flow, resistive wall modes

中图分类号:  (Magnetohydrodynamics (including electron magnetohydrodynamics))

  • 52.30.Cv
52.35.Py (Macroinstabilities (hydromagnetic, e.g., kink, fire-hose, mirror, ballooning, tearing, trapped-particle, flute, Rayleigh-Taylor, etc.)) 52.65.Kj (Magnetohydrodynamic and fluid equation)