PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES |
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Numerical study of physical properties of resistive wall modes in tokamaks |
Xia Xin-Nian (夏新念), Liu Yue (刘悦), Liu Chao (刘超), He Yu-Ling (何玉玲), Xia Guo-Liang (夏国良) |
Key Laboratory of Materials Modification by Laser, Ion and Electron Beams (Dalian University of Technology) Ministry of Education, School of Physics and Optoelectronic Engineering, Dalian University of Technology, Dalian 116024, China |
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Abstract The effect of the plasma with toroidal rotation on the resistive wall modes in tokamaks is studied numerically. An eigenvalue method is adopted to calculate the growth rate of the modes for changing plasma resistivity and plasma density distribution, as well as the diffusion time of magnetic field through the resistive wall. It is found that the resistive wall mode can be suppressed by the toroidal rotation of the plasma. Also, the growth rate of the resistive wall mode decreases when the edge plasma density is the same as the core plasma density, but it changes only slightly with the plasma resistivity.
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Received: 30 March 2012
Revised: 31 August 2012
Accepted manuscript online:
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PACS:
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52.55.Fa
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(Tokamaks, spherical tokamaks)
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52.55.Tn
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(Ideal and resistive MHD modes; kinetic modes)
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52.35.Py
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(Macroinstabilities (hydromagnetic, e.g., kink, fire-hose, mirror, ballooning, tearing, trapped-particle, flute, Rayleigh-Taylor, etc.))
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Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 11275041, 11105065, 11095015 and 10675029) and the National Basic Research Program of China (Grant Nos. 2008CB717801, 2008CB787103, 2009GB105004, and 2010GB106002). |
Corresponding Authors:
Liu Yue
E-mail: liuyue@dlut.edu.cn
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Cite this article:
Xia Xin-Nian (夏新念), Liu Yue (刘悦), Liu Chao (刘超), He Yu-Ling (何玉玲), Xia Guo-Liang (夏国良) Numerical study of physical properties of resistive wall modes in tokamaks 2013 Chin. Phys. B 22 055203
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