| Bursty Behaviour of Turbulent Particle and Energy Fluxes in Edge Plasma of HT-7 Tokamak |
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| 作者姓名： | 宋梅 万宝年 徐国盛 |
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| 作者单位： | [1]Physical Oceanography Laboratory, Ocean University of China, Qingdao 266003,China [2]Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China |
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| 基金项目： | supported by the the Scientific Startup Foundation of 0cean University of China （No. 0900-813586） |
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| 摘 要： | High time resolution measurements of the electrostatic fluctuations and the turbulent particle and energy fluxes have been performed with a Langmuir probe array in the edge plasma in HT-7 tokamak. Bursty behaviour was observed in the time resolved turbulent fluxes with positive skewness and large kurtosis. The contribution of the large sporadic bursts to the transport losses were estimated. The analysis shows that the turbulent fluxes have different behaviour in different frequency domains and the probability distribution functions （PDFs） of the particle and energy fluxes present two distinct scaling ranges. All these are essentially consistent with the predictions of the self-organized criticality （SOC） model, though further studies are needed.
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| 关 键 词： | 托卡马克装置 粒子流 能量流 湍流 边缘等离子体 |
| 收稿时间： | 2005-08-09 |
| 修稿时间： | 2005-08-09 |
Bursty Behaviour of Turbulent Particle and Energy Fluxes in Edge Plasma of HT-7 Tokamak |
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| SONG Mei, WAN Baonian, XU Guosheng.Bursty Behaviour of Turbulent Particle and Energy Fluxes in Edge Plasma of HT-7 Tokamak[J].Plasma Science & Technology,2006,8(4):377-380. |
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| Authors: | SONG Mei WAN Baonian XU Guosheng |
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| Affiliation: | 1 Physical Oceanography Laboratory, Ocean University of China, Qingdao 266003 China 2 Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China |
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| Abstract: | |
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| Keywords: | turbulent bursty behaviour particle and energy fluxes tokamak |
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