Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1859447 | Physics Letters A | 2016 | 5 Pages |
Abstract
The physics of edge localized modes (ELMs) mitigated by static magnetic perturbations (SMPs) with a toroidal mode number n=0 is studied. Three-field reduced magnetohydrodynamics (MHD) equations are solved by BOUT++ code. In the simulation, an effective mitigation of ELM has been observed when SMPs are added. A new mechanism of ELM mitigation is proposed that n=0 SMPs can excite a wide toroidal mode spectrum through EÃB shearing rate which diminishes turbulent transport in the nonlinear phase. The mechanism is confirmed by the simulation results and relevant physical analysis in this paper.
Keywords
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Physical Sciences and Engineering
Physics and Astronomy
Physics and Astronomy (General)
Authors
M.L. Mou, J. Huang, N. Wu, S.Y. Chen, C.J. Tang,