摘要
一、基本方程与计算方法 1.锯齿模式锯齿上升部分可做如下解释,焦耳加热使电流分布变尖,q减小,致使m=1的撕裂模变得不稳定,磁岛将增长。r_s是q=1处的半径,由下式给出 q(r_s)=1. (1) 磁岛宽度由给出。式中W_o为初值。
When the safety factor drops below unity, sawtooth oscillations are observed in the CT-6B tokamak We use a simple sawtooth oscillation model combined with a tokamak transport code to simulate this process. The results show that the sawtooth oscillation appears easily in the case of gas-puffing. The radius of q=1 magnetic surface r_s is about 2-3 cm, which is consistent fairly well with the experiment. The anomalous electron heat conductivities from numerical simulation and the results from internal disruption experiments are compared.
出处
《核聚变与等离子体物理》
CAS
CSCD
北大核心
1989年第4期237-239,253,共4页
Nuclear Fusion and Plasma Physics
关键词
托术马克
锯齿
模拟
CT-6B
Tokamak transport
Sawtooth oscillation
Numerical simulation
