Temporal-spatial structures of plasmas flows and turbulence around tearing mode islands in the edge tokamak plasmas
作者: K.J. ZhaoY. NagashimaF.M. LiYuejiang ShiP.H. DiamondJ.Q. DongK. ItohS.-I. ItohG. ZhuangH. LiuZ.P. ChenJ. ChengL. NieY.H. DingQ.M. HuZ.Y. ChenB. RaoZ.F. ChengL. GaoX.Q. ZhangZ.J. YangN.C. WangL. WangW. JinW. YanJ.Q. XuY.F. WuL.W. YanA. FujisawaS. InagakiY. KosugaM. SasakiJ-TEXT Team
作者单位: 1Southwestern Institute of Physics, PO Box 432, Chengdu, People’s Republic of China
2College of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan Hubei 430074, People’s Republic of China
3Research Institute for Applied Mechanics, Kyushu University, Kasuga, Kasuga koen 6-1, 816-8580, Japan
4Department of Nuclear Engineering, Seoul National University, Seoul, Republic of Korea
5Center for Momentum Transport and Flow Organization, University of California at San Diego, CA 92093, United States of America
6Institute of Science and Technology Research, Chubu University, Kasugai, Aichi 487-8501, Japan
7National Institute for Fusion Science, Toki 509-5292, Japan
8Institute for Fusion Theory and Simulation, Zhejiang University, Hangzhou, People’s Republic of China
刊名: Nuclear Fusion, 2017, Vol.57 (12)
来源数据库: Institute of Physics Journal
DOI: 10.1088/1741-4326/aa8341
原始语种摘要: The temporal-spatial structures of plasma flows and turbulence around tearing mode islands are presented. The experiments were performed using Langmuir probe arrays in the edge plasmas of J-TEXT tokamak. The correlation analyses clearly show that the flows have similar structures of m / n = 3/1 as the magnetic island does ( m and n are the poloidal and toroidal mode numbers, respectively). The sign of the potential fluctuations for the flows inverses and the powers significantly reduce at q = 3 surface. Approaching to the last closed flux surface for the magnetic islands, the radially elongated flow structure forms. The flows are concentrated near separatrix and show quadrupole structures. The turbulence is concentrated near X-point and partly trapped inside the magnetic islands.
全文获取路径: IOP 

  • tokamak 托卡马克
  • tearing 裂开
  • turbulence 湍流紊流
  • spatial 空间的
  • concentrated 集中的
  • around 环绕
  • temporal 现世的
  • separatrix 分隔号
  • elongated 引伸的
  • radially 放射的