| HL-2A装置上边界间歇性事件与湍流粒子输运的统计学研究 |
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| 引用本文： | 王炼,钱伟,白泉,魏然,车通,刘星,徐丽莎,郑鹏飞. HL-2A装置上边界间歇性事件与湍流粒子输运的统计学研究[J]. 核聚变与等离子体物理, 2020, 39(4): 289-293. DOI: 10.16568/j.0254-6086.201904001 |
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| 作者姓名： | 王炼 钱伟 白泉 魏然 车通 刘星 徐丽莎 郑鹏飞 |
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| 作者单位： | (东华大学理学院应用物理系，上海 201620) |
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| 摘 要： | 通过对粒子概率分布函数的计算,发现在高等离子体密度下边界间歇性事件的爆发频率有所增加。通过条件平均的手段,正负间歇性事件得以区分,并发现了二者在空间上的不同特征。不同密度梯度下的湍流粒子输运计算表明,间歇性事件与湍流粒子输运之间存在密切联系,间歇性事件的存在能够大大增加湍流粒子输运的大小。在高等离子体密度时,间歇性事件的强度有所增加,而与之相应地,湍流粒子输运的大小也有所增强。
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| 关 键 词： | 间歇性事件 湍流 粒子输运 斜度 |
| 收稿时间： | 2019-05-28 |
Modeling study on the effects of drifts on tungsten impurity production and transport in EAST |
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| WANG Lian,QIAN Wei,BAI Quan,WEI Ran,CHE Tong,LIU Xing,XU Li-sha,ZHENG Peng-fei. Modeling study on the effects of drifts on tungsten impurity production and transport in EAST[J]. Nuclear Fusion and Plasma Physics, 2020, 39(4): 289-293. DOI: 10.16568/j.0254-6086.201904001 |
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| Authors: | WANG Lian QIAN Wei BAI Quan WEI Ran CHE Tong LIU Xing XU Li-sha ZHENG Peng-fei |
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| Affiliation: | (Southwestern Institute of Physics, Chengdu 610041) |
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| Abstract: | In this paper, the Monte-Carlo impurity transport code DIVIMP is used to simulate the tungsten impurity production and transport properties under different drift conditions (no drifts, ion B× B drift directing to the upwards/downwards) for the discharge of the upper single null in the experimental advanced superconducting tokamak (EAST) device. The results show that the classical drifts significantly affect the tungsten impurity sputtering from the divertor target and its content in the upstream. |
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| Keywords: | Intermittency Turbulence Particle transport Skewness |
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