Model validation for radial electric field excitation during L–H transition in JFT-2M tokamak
作者: T. KobayashiK. ItohT. IdoK. KamiyaS.-I. ItohY. MiuraY. NagashimaA. FujisawaS. InagakiK. IdaK. Hoshino
作者单位: 1National Institute for Fusion Science, National Institutes of Natural Sciences, Toki 509-5292, Japan
2Research Center for Plasma Turbulence, Kyushu University, Kasuga 816-8580, Japan
3National Institutes for Quantum and Radiological Science and Technology, Naka 311-0193, Japan
4Research Institute for Applied Mechanics, Kyushu University, Kasuga 816-8580, Japan
5Japan Atomic Energy Agency, Naka 311-0193, Japan
刊名: Nuclear Fusion, 2017, Vol.57 (7)
来源数据库: Institute of Physics Journal
DOI: 10.1088/1741-4326/aa5d03
原始语种摘要: In this paper, we elaborate the electric field excitation mechanism during the L–H transition in the JFT-2M tokamak. Using time derivative of the Poisson’s equation, models of the radial electric field excitation is examined. The sum of the loss-cone loss current and the neoclassical bulk viscosity current is found to behave as the experimentally evaluated radial current that excites the radial electric field. The turbulent Reynolds stress only plays a minor role. The wave convection current that produces a negative current at the edge can be important to explain the ambipolar condition in the L-mode.
全文获取路径: IOP  (合作)

  • tokamak 托卡马克
  • transition 转移
  • radial 放射状的
  • excitation 激发
  • electric 电的
  • current 
  • convection 对流
  • ambipolar 二极的
  • elaborate 阐述
  • validation 证实