| HL─1装置等离子体输运与锯齿特性的数值研究 |
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| 引用本文： | 严龙文,冉利波,郑永真,石秉仁,郭干城,钟云泽.HL─1装置等离子体输运与锯齿特性的数值研究[J].核聚变与等离子体物理,1994(1). |
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| 作者姓名： | 严龙文 冉利波 郑永真 石秉仁 郭干城 钟云泽 |
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| 作者单位： | 四川成都核工业西南物理研究院 |
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| 摘 要： | 本文利用一维圆柱等离子体输运编码（ＴＲＡＮＰＹ），编制了模拟锯齿振荡的大型编码（ＳＡＷＭＯＤ）。对锯齿振荡的研究，我们选用了两种具有代表性的理论模型：重联模型和湍流模型，后者特别适用于低ｑａ放电的锯齿特性研究。重联模型的锯齿振荡是由于磁力线的完全重联引起的，而湍流模型的锯齿振荡是因为微观湍流或磁力线的随机化而产生的。最后，我们将ＨＬ─１装置的一次典型高密放电的参数代入（ＳＡＷＭＯＤ）编码，运算结果表明，重联模型和湍流模型均能解释实验观测的锯齿现象，理论模拟与实验结果符合较好。
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| 关 键 词： | 等离子体输运，锯齿振荡，重联模型，湍流模型 |
NUMERICAL STUDY OF PLASMA TRANSPORT AND SAWTEETH IN THE HL-1 TOKAMAK |
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| Yan Longwen, Ran Libo, Zheng Yongzhen, Shi Bingren, Guo Gancheng, Zhong Yunze.NUMERICAL STUDY OF PLASMA TRANSPORT AND SAWTEETH IN THE HL-1 TOKAMAK[J].Nuclear Fusion and Plasma Physics,1994(1). |
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| Authors: | Yan Longwen Ran Libo Zheng Yongzhen Shi Bingren Guo Gancheng Zhong Yunze |
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| Abstract: | A computer code SAWMOD has been developed to simulate sawtooth oscillation making use of a cylindrical plasma transport code TRANPY. Two models, reconnection model and turbulent model, are employed to describe the sawtooth oscillations. The former is mainly used to analyse the sawteeth of high qa discharges, while the latter is applicable to low qa discharges(q0<0.9). With the SAWMOD code, analyzed in detail are the temperature. density, particle and energy confinement time, sawtooth period and inverse radius for a typical discharge with high density in the HL-1 tokamak. The calculated results from the two models are in good agreement with those of experiment. |
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| Keywords: | Plasma transport Sawtooth oscillations Reconnection model Turbulent |
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