GTC Simulation of Ideal Ballooning Mode in Tokamak Plasmas

LI Zebin (李泽彬); SUN Guoya (孙国亚); Ihor HOLOD; XIAO Yong (肖湧); et al

doi:10.1088/1009-0630/15/6/03

Plasma Science and Technology > 2013 > 15(6): 499-505. > DOI: 10.1088/1009-0630/15/6/03

LI Zebin (李泽彬), SUN Guoya (孙国亚), Ihor HOLOD, XIAO Yong (肖湧), et al. GTC Simulation of Ideal Ballooning Mode in Tokamak Plasmas[J]. Plasma Science and Technology, 2013, 15(6): 499-505. DOI: 10.1088/1009-0630/15/6/03

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GTC Simulation of Ideal Ballooning Mode in Tokamak Plasmas

1 Department of Physics, and Institute of Theoretical Physics and Astrophysics, Xiamen University, Xiamen 361005, China 2 Department of Physics and Astronomy, University of California, Irvine, California 92697, USA 3Institute of Fusion Theory and Simulation, Zhejiang University, Hangzhou 310027, China 4 CAS Key Laboratory of Basic Plasma Physics, University of Science and Technology of China, Hefei 230026, China 5 Fusion Simulation Center, Peking University, Beijing 100871, China

Funds: supported by U. S. Department of Energy (DOE) SciDAC GSEP Center and National Special Research Program of China for ITER

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Received Date: February 19, 2012

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Abstract

Abstract

In the present paper, we first derive the eigenmode equation of the ideal ballooning mode in tokamak plasmas using a gyrokinetic equation. It is shown that the gyrokinetic eigenmode equation can be reduced to the magnetohydrodynamic (MHD) form in the long wavelength limit when kinetic effects are ignored. Then, the global gyrokinetic toroidal code (GTC) is applied for simulations of the edge-localized ideal ballooning modes. The obtained mode structures are compared with the results of ideal MHD simulations. The observed scaling of the linear growth rate with the toroidal mode number is consistent with the ideal MHD theory. The simulation results verify the GTC capability of simulating MHD processes in toroidal plasmas.
- edge-localized ideal ballooning mode,
- global gyrokinetic toroidal code,
- tokamak plasmas

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