Simulation of magnetic island dynamics under resonant magnetic perturbation with the TEAR code and validation of the results on T-10 tokamak data

2014 ◽  
Vol 21 (10) ◽  
pp. 102502 ◽  
Author(s):  
N. V. Ivanov ◽  
A. M. Kakurin
Keyword(s):  
Magnetic Island ◽  
Magnetic Perturbation ◽  
Island Dynamics

A brief review: effects of resonant magnetic perturbation on classical and neoclassical tearing modes in tokamaks

2021 ◽  
Author(s):  
Zhengxiong Wang ◽  
Weikang Tang ◽  
Lai Wei
Keyword(s):  
Mode Locking ◽  
Numerical Results ◽  
Magnetic Island ◽  
Magnetic Perturbation ◽  
Tearing Modes ◽  
Experimental Discovery ◽  
Physical Picture

Abstract This paper reviews the effects of resonant magnetic perturbation (RMP) on classical tearing modes (TMs) and neoclassical tearing modes (NTMs) from the theory, experimental discovery and numerical results with a focus on four major aspects: (i) mode mitigation, where the TM/NTM is totally suppressed or partly mitigated by the use of RMP; (ii) mode penetration, which means a linearly stable TM/NTM triggered by the externally applied RMP; (iii) mode locking, namely an existing rotating magnetic island braked and finally stopped by the RMP; (iv) mode unlocking, as the name suggests, it is the reverse of the mode locking process. The key mechanism and physical picture of above phenomena are revealed and summarized.

scholarly journals Particle Orbits, Trapping, and Acceleration in a Filamentary Current Sheet Model

1994 ◽  
Vol 142 ◽  
pp. 719-728
Author(s):  
Bernhard Kliem
Keyword(s):  
Particle Acceleration ◽  
Electric Field ◽  
Test Particle ◽  
Solar Flares ◽  
Acceleration Of Particles ◽  
Acceleration Process ◽  
Two Dimensional ◽  
Magnetic Island ◽  
Particle Orbits ◽  
Island Dynamics

AbstractTest particle orbits in the two-dimensional Fadeev equilibrium with a perpendicular electric field added are analyzed to show that impulsive bursty reconnection, which has been proposed as a model for fragmentary energy release in solar flares, may account also for particle acceleration to (near) relativistic energies within a fraction of a second. The convective electric field connected with magnetic island dynamics can play an important role in the acceleration process.Subject headings: acceleration of particles — MHD — plasmas — Sun: corona — Sun: flares

scholarly journals Suppressing magnetic island growth by resonant magnetic perturbation

2018 ◽  
Vol 58 (5) ◽  
pp. 054003 ◽  
Author(s):  
Q. Yu ◽  
S. Günter ◽  
K. Lackner
Keyword(s):  
Magnetic Island ◽  
Island Growth ◽  
Magnetic Perturbation

scholarly journals Two-fluid magnetic island dynamics in slab geometry. I. Isolated islands

2005 ◽  
Vol 12 (2) ◽  
pp. 022307 ◽  
Author(s):  
Richard Fitzpatrick ◽  
François L. Waelbroeck
Keyword(s):  
Magnetic Island ◽  
Slab Geometry ◽  
Island Dynamics ◽  
Two Fluid
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