Interlocking and nonlinear saturation of double tearing modes in differentially rotating plasmas

Wang, Xian-Qu; Wang, Xiaogang; Xu, Wen-Bin; Wang, Zheng-Xiong
January 2011
Physics of Plasmas;Jan2011, Vol. 18 Issue 1, p012102
Academic Journal
Interlocking and nonlinear saturation of double tearing modes (DTMs) in rotating plasmas are investigated in a reduced magnetohydrodynamic model. Differential plasma rotation is found to have a significant stabilizing effect on the DTM. Analysis for the threshold island width and locking frequency is carried out. The effect of the viscosity on the mode is also discussed.


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