| PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES |
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Investigation on the drives of the poloidal flow in the ohmic and biased electrode experiments |
| Yi Yu(余羿)1,2, Tao Lan(兰涛)1, Min Xu(许敏)3, Yizhi Wen(闻一之)1 |
1 University of Science and Technology of China, Hefei 230026, China;
2 School of Science, Xihua University, Chengdu 610041, China;
3 Southwestern Institute of Physics, Chengdu 610041, China |
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Abstract The experimental investigation on the drives of the poloidal flow in KT-5D tokamak are presented. It is found that the poloidal flow is the main contributor to the radial electric field, and the Reynolds stress can drive significant poloidal flows in ohmic discharges. The investigation on the relationship between the radial gradient of Reynolds stress and the poloidal flow in biasing discharges indicates that not only Reynolds stress but also the Lorentz's force can drive the poloidal flow.
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Received: 31 October 2018
Revised: 14 December 2018
Accepted manuscript online:
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PACS:
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52.55.Fa
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(Tokamaks, spherical tokamaks)
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52.25.Gj
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(Fluctuation and chaos phenomena)
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52.35.Ra
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(Plasma turbulence)
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| Fund: Project supported by the National Natural Science Foundation of China (Grant No. 11875124), the National Magnetic Confinement Fusion Energy Research Project, China (Grant No. 2015GB120002), and the National Key Research and Development Program of China (Grant No. 2017YFE0300405). |
Corresponding Authors:
Yi Yu
E-mail: yuyi@ustc.edu.cn
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Cite this article:
Yi Yu(余羿), Tao Lan(兰涛), Min Xu(许敏), Yizhi Wen(闻一之) Investigation on the drives of the poloidal flow in the ohmic and biased electrode experiments 2019 Chin. Phys. B 28 035202
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