Theoretical analysis of energetic-ion-driven resistive interchange mode stabilization strategies using a Landau closure model
作者: J. VarelaS. OhdachiK.Y. WatanabeD.A. SpongL. GarciaR. Seki
刊名: Nuclear Fusion, 2020, Vol.60 (4)
来源数据库: Institute of Physics Journal
DOI: 10.1088/1741-4326/ab7213
原始语种摘要: The aim of the present study is to perform a theoretical analysis of different strategies to stabilize energetic-ion-driven resistive interchange mode (EIC in Large Helical Device (LHD plasma. We use a reduced MHD for the thermal plasma coupled with a gyrofluid model for the energetic particles (EP species. The hellically trapped EP component is introduced through a modification of the drift frequency to include their precessional drift. The stabilization trends of the 1/1 EIC observed experimentally with respect to the thermal plasma density and temperature are reproduced by the simulations, showing a reasonable agreement with the data. The LHD operation scenarios with stable 1/1 EIC are identified, leading to the stabilization of the 1/1 EIC if the thermal plasma density and temperature...
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关键词翻译
关键词翻译
  • stabilization 稳定
  • energetic 能量的
  • times 
  • driven 从动的
  • higher 
  • larger 较大
  • resistive 有阻力的
  • analysis 分析
  • further 进一步
  • observed 观察到的