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On error field penetration processes in magnetic island mode locking

Published online by Cambridge University Press:  13 December 2013

H. H. Wang ,
Z. X. Wang  and
X. G. Wang
H. H. Wang
Affiliation:
MOE Key Laboratory of Materials Modification by Beams, School of Physics and Optoelectronic Engineering, Dalian University of Technology, Dalian 116024, China
Z. X. Wang*
Affiliation:
MOE Key Laboratory of Materials Modification by Beams, School of Physics and Optoelectronic Engineering, Dalian University of Technology, Dalian 116024, China
X. G. Wang
Affiliation:
School of Physics, Peking University, Beijing 100871, China
*
†Email address for correspondence: [email protected]
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Abstract

Error field penetration processes in magnetic island mode locking with the time-varying and fixed boundary perturbations are investigated numerically by using a two-dimensional resistive magnetohydrodynamic model in slab geometry. The evolution of various poloidal torques on the rational surface in the processes is analyzed in detail. In particular, three different states with the fixed boundary perturbations, viz. below the threshold (nearly locked regime), on the threshold (just locked regime), and above the threshold (strongly locked regime), are discussed and compared with the physical processes of the Rutherford regime.

Type
Papers
Information
Journal of Plasma Physics , Volume 80 , Issue 3 , June 2014 , pp. 417 - 423
Copyright
Copyright © Cambridge University Press 2013 

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