Effects of m=0 Harmonics on Quasi-Linear Stage of m=1 Double Tearing Mode

被引：0
|
作者：
王正汹 [1 ]
王晓钢 [1 ]
董家齐 [2 ]
龙永兴 [2 ]
牟宗泽 [2 ]
机构：
[1] State Key Lab.of Materials Modification by Laser,Electron and Ion Beams,Department of Physics,Dalian University of Technology,Dalian 116024,China
[2] Southwestern Institute of Physics,Chengdu 610041,China
来源：
Plasma Science and Technology | 2007年 / 03期
关键词：
double tearing mode; electron viscosity; poloidal shear velocity;
D O I：
暂无
中图分类号：
O441 [电磁学];
学科分类号：
0809 ;
摘要：
Effects of the m=0 harmonics on the early quasi-linear stage of m=1 doubletearing modes are investigated.The numerical calculation with the harmonics m = 0 includedshows that the effect of the m=0 harmonics on the mode is negligible in the linear stage.Asthe mode begins to grow nonlinearly,both the current and flow profiles are pinched due to them=0 harmonics.To make a comparison we also carry out the calculation with m=0 harmonicsturned off.The profiles of the total current,poloidal magnetic field,and poloidal shear velocityin the cases with or without the m=0 harmonics are compared and discussed.In addition,theformation of a poloidal velocity shear is found and its mechanism is investigated.
引用
收藏
页码：257 / 260
页数：4
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