中国物理B ›› 2019, Vol. 28 ›› Issue (3): 35202-035202.doi: 10.1088/1674-1056/28/3/035202

• PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES • 上一篇    下一篇

Investigation on the drives of the poloidal flow in the ohmic and biased electrode experiments

Yi Yu(余羿), Tao Lan(兰涛), Min Xu(许敏), 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
  • 收稿日期:2018-10-31 修回日期:2018-12-14 出版日期:2019-03-05 发布日期:2019-03-05
  • 通讯作者: Yi Yu E-mail:yuyi@ustc.edu.cn
  • 基金资助:

    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).

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. 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
  • Received:2018-10-31 Revised:2018-12-14 Online:2019-03-05 Published:2019-03-05
  • Contact: Yi Yu E-mail:yuyi@ustc.edu.cn
  • Supported by:

    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).

摘要:

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.

关键词: radial electric field, poloidal flow, Reynolds stress

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.

Key words: radial electric field, poloidal flow, Reynolds stress

中图分类号:  (Tokamaks, spherical tokamaks)

  • 52.55.Fa
52.25.Gj (Fluctuation and chaos phenomena) 52.35.Ra (Plasma turbulence)