Parallel flow driven instability due to toroidal return flow in high-confinement mode plasmas
作者: M. SasakiK. ItohY. KosugaJ.Q. DongS. InagakiT. KobayashiJ. ChengK.J. ZhaoS.-I. Itoh
作者单位: 1Research Institute for Applied Mechanics, Kyushu University, Kasuga 816-8580, Japan
2Research Center for Plasma Turbulence, Kyushu University, Kasuga 816-8580, Japan
3National Institute for Fusion Science, Toki 509-5292, Japan
4Institute of Science and Technology Research, Chubu University, Aichi 487-8501, Japan
5Southwestern Institute of Physics, Chengdu, Sichuan 61004, China
6College of Nuclear Science and Engineer, East China University of Technology, Nanchang, Jiangxi 330013, China
7Department of Innovative Energy Science and Engineering, Graduate School of Engineering, Chubu University, Aichi 487-8501, Japan
刊名: Nuclear Fusion, 2019, Vol.59 (6)
来源数据库: Institute of Physics Journal
DOI: 10.1088/1741-4326/ab1292
原始语种摘要: We theoretically investigate turbulence in high-confinement mode (H-mode) plasmas with the pressure gradient and the mean flow. The toroidal flow, which is induced by the poloidal mean flow so as to satisfy the divergence free condition, exists in the H-mode, thus the effect of the toroidal return flow on instabilities is considered. The proposed model self-consistently includes not only the destabilization of the drift wave and the parallel flow shear instability, called the D’Angelo mode, but also the stabilization due to the poloidal flow shear. Depending on the strength of the flow shear or on the magnetic geometrical parameter, we obtain the stabilization of the drift wave and the destabilization of the D’Angelo mode. The competition between different instabilities through coupling...
全文获取路径: IOP 

  • instability 不稳定性
  • stabilization 稳定
  • toroidal 环面
  • return 归路
  • shear 切变
  • understanding 理解
  • divergence 分歧
  • drift 水平巷道
  • driven 从动的
  • competition 竞争