Finite toroidal flow generated by unstable tearing mode in a toroidal plasma

• DOI: 10.1063/1.4903334
• Publication Date: 2014-12-04T18:17:44Z
• Authors: G. Z. Hao; Y. Q. Liu; A. K. Wang; Y. Sun; Y. H. Xu; H. D. He; M. Xu; H. P. Qu; X. D. Peng; J. Q. Xu; S. Y. Cui; X. M. Qiu
• Keywords: Tearing; Safety factor; Plasma stability

The neoclassical toroidal plasma viscosity torque and electromagnetic torque, generated by tearing mode (TM) in a plasma, are numerically investigated using the MARS-Q code [Liu et al., Phys. Plasmas 20, 042503 (2013)]. It is found that an initially unstable can intrinsically drive flow resulting steady state solution, absence of external momentum input magnetic field perturbation. saturated order 0.5%ωA at q=2 rational surface considered case, with q ωA being safety factor Alfven frequency axis, respectively. generation robust, insensitive to given amplitude perturbation initial state. On other hand, increases increasing resistivity. Furthermore, fully stabilized non-linear interaction self-generated flow.