scholarly journals Plasma transport in stochastic magnetic field caused by vacuum resonant magnetic perturbations at diverted tokamak edge

2010 ◽  
Vol 17 (10) ◽  
pp. 102503 ◽  
Author(s):  
G. Park ◽  
C. S. Chang ◽  
I. Joseph ◽  
R. A. Moyer
Keyword(s):  
Magnetic Field ◽  
Plasma Transport ◽  
Magnetic Perturbations ◽  
Tokamak Edge ◽  
Resonant Magnetic Perturbations ◽  
Stochastic Magnetic Field

Anomalous Plasma Transport and Induced Electric Field in a Stochastic Magnetic Field Structure

1995 ◽  
Vol 27 (3T) ◽  
pp. 493-496 ◽  
Author(s):  
Tetsuyuki Kubota ◽  
Sanae -I. Itoh ◽  
Shinichiro Toda ◽  
Hiroki Yamaguchi ◽  
Atsushi Fukuyama
Keyword(s):  
Magnetic Field ◽  
Electric Field ◽  
Field Structure ◽  
Plasma Transport ◽  
Magnetic Field Structure ◽  
Stochastic Magnetic Field

Magnetic field topology modeling under resonant magnetic perturbations on EAST

2019 ◽  
Vol 21 (6) ◽  
pp. 065105
Author(s):  
Jie HUANG ◽  
Yasuhiro SUZUKI ◽  
Yunfeng LIANG ◽  
Manni JIA ◽  
Youwen SUN ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Magnetic Field Topology ◽  
Magnetic Perturbations ◽  
Resonant Magnetic Perturbations

scholarly journals Instability and turbulent relaxation in a stochastic magnetic field

2022 ◽  
Author(s):  
Mingyun Cao ◽  
Patrick H Diamond
Keyword(s):  
Magnetic Field ◽  
Large Scale ◽  
Convective Cell ◽  
Small Scale ◽  
Multi Scale ◽  
Fluctuation Dissipation ◽  
Size Disparity ◽  
Magnetic Perturbations ◽  
Vorticity Generation ◽  
Stochastic Magnetic Field

Abstract An analysis of instability dynamics in a stochastic magnetic field is presented for the tractable case of the resistive interchange. Externally prescribed static magnetic perturbations convert the eigenmode problem to a stochastic differential equation, which is solved by the method of averaging. The dynamics are rendered multi-scale, due to the size disparity between the test mode and magnetic perturbations. Maintaining quasi-neutrality at all orders requires that small-scale convective cell turbulence be driven by disparate scale interaction. The cells in turn produce turbulent mixing of vorticity and pressure, which is calculated by fluctuation-dissipation type analyses, and are relevant to pump-out phenomena. The development of correlation between the ambient magnetic perturbations and the cells is demonstrated, showing that turbulence will ‘lock on’ to ambient stochasticity. Magnetic perturbations are shown to produce a magnetic braking effect on vorticity generation at large scale. Detailed testable predictions are presented. The relations of these findings to the results of available simulations and recent experiments are discussed.

scholarly journals Impact of screening of resonant magnetic perturbations in three dimensional edge plasma transport simulations for DIII-D

2012 ◽  
Vol 19 (5) ◽  
pp. 052507 ◽  
Author(s):  
H. Frerichs ◽  
D. Reiter ◽  
O. Schmitz ◽  
P. Cahyna ◽  
T. E. Evans ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Edge Plasma ◽  
Plasma Transport ◽  
Magnetic Perturbations ◽  
Resonant Magnetic Perturbations

scholarly journals A new high-order fluid solver for tokamak edge plasma transport simulations based on a magnetic-field independent discretization

2018 ◽  
Vol 58 (6-8) ◽  
pp. 688-695 ◽  
Author(s):  
G. Giorgiani ◽  
T. Camminady ◽  
H. Bufferand ◽  
G. Ciraolo ◽  
P. Ghendrih ◽  
...  
Keyword(s):  
Magnetic Field ◽  
High Order ◽  
Edge Plasma ◽  
Plasma Transport ◽  
Field Independent ◽  
Tokamak Edge
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