Coriolis Force Effect on Suppression of Neo-Classical Tearing Mode Triggered Explosive Burst in Reversed Magnetic Shear Tokamak Plasmas  

作　　者：Tong Liu Lai Wei Feng Wang Zheng-Xiong Wang 刘桐;魏来;王丰;王正汹(Key Laboratory of materials Modification by Beams of the Ministry of Education,School of Physics,Dalian University of Technology,Dalian 116024,China)

机构地区：[1]Key Laboratory of materials Modification by Beams of the Ministry of Education,School of Physics,Dalian University of Technology,Dalian 116024,China

出　　处：《Chinese Physics Letters》2021年第4期75-80,共6页中国物理快报（英文版）

基　　金：the National Natural Science Foundation of China(Grant Nos.11925501,11875099,and 11575158);the Liaoning Revitalization Talents Program(Grant No.XLYC1802009);the China Scholarship Council(Grant No.201806060036)。

摘　　要：We numerically investigate the Coriolis force effect on the suppression of an explosive burst,triggered by the neo-classical tearing mode,in reversed magnetic shear configuration tokamak plasmas,using a reduced magnetohydrodynamic model,including bootstrap current.Previous works have shown that applying differential poloidal rotation,with rotation shear located near the outer rational surface,is an effective way to suppress an explosive burst.In comparison with cases where there is no Coriolis force,the amplitude of differential poloidal rotation required to effectively suppress the explosive burst is clearly reduced once the effect of Coriolis force is taken into consideration.Moreover,the effective radial region of the rotation shear location is broadened in cases where the Coriolis force effect is present.Applying rotation with shear located between the radial positions of qminand the outer rational surface always serves to effectively suppress explosive bursts,which we anticipate will reduce operational difficulties in controlling explosive bursts,and will consequently prevent plasma disruption in tokamak experiments.

关 键 词：rotation EFFECT RATIONAL 

分 类 号：TL631.24[核科学技术—核技术及应用] TL612