期刊
PHYSICS OF PLASMAS
卷 18, 期 6, 页码 -出版社
AIP Publishing
DOI: 10.1063/1.3592988
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资金
- College Doctoral Franco-Japonais
- CNRS [LIA 336]
- NIFS/NINS
- Grants-in-Aid for Scientific Research [23246163, 21224014] Funding Source: KAKEN
The dynamics of global reconnection in the presence of a poloidal shear flow located in between magnetic islands is investigated. Different linear and nonlinear regimes are identified depending on the resistivity, the equilibrium velocity amplitude, and the distance between the low-order resonant surfaces. It is found that nonlinearly, the shear flow can significantly delay DTM generation and global reconnection. It is shown that this delay is linked to a symmetry breaking imposed by the shear flow and the generation of mean poloidal flows in the resistive layers. It is also found that turbulence can be generated by Kelvin-Helmholtz instability in between the resonance layers and enhance magnetic reconnection processes. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3592988]
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