Numerical study of Alfvén eigenmodes in the Experimental Advanced Superconducting Tokamak
PHYSICS OF PLASMAS(2014)
摘要
Alfven eigenmodes in up-down asymmetric tokamak equilibria are studied by a new magnetohydrodynamic eigenvalue code. The code is verified with the NOVA code for the Solovev equilibrium and then is used to study Alfven eigenmodes in a up-down asymmetric equilibrium of the Experimental Advanced Superconducting Tokamak. The frequency and mode structure of toroidicity-induced Alfven eigenmodes are calculated. It is demonstrated numerically that up-down asymmetry induces phase variation in the eigenfunction across the major radius on the midplane. (C) 2014 AIP Publishing LLC.
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关键词
experimental advanced superconducting tokamak,alfvén
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