| CT-6B托卡马克的锯齿模拟 |
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| 引用本文： | 刘敏,王龙. CT-6B托卡马克的锯齿模拟[J]. 核聚变与等离子体物理, 1989, 0(4) |
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| 作者姓名： | 刘敏 王龙 |
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| 作者单位： | 中国科学院物理研究所 北京 |
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| 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,Y是m=1/n=1模的线性增长率
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| 关 键 词： | 托卡马克输运 锯齿振荡 数值模拟。 |
SIMULATION OF SAWTOOTH OSCILLATION IN THE CT-6B TOKAMAK |
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| LIU Min WANG Long. SIMULATION OF SAWTOOTH OSCILLATION IN THE CT-6B TOKAMAK[J]. Nuclear Fusion and Plasma Physics, 1989, 0(4) |
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| Authors: | LIU Min WANG Long |
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| Abstract: | 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. |
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| Keywords: | Tokamak transport Sawtooth oscillation Numerical simulation |
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