Turbulent momentum pinch of diamagnetic flows in a tokamak
作者: Jungpyo LeeFelix I. ParraMichael Barnes
作者单位: 1Plasma Science and Fusion Center, MIT, Cambridge, USA
刊名: Nuclear Fusion, 2014, Vol.54 (2)
来源数据库: Institute of Physics Journal
DOI: 10.1088/0029-5515/54/2/022002
原始语种摘要: The diamagnetic flow due to the radial pressure and temperature gradients and the E × B flow due to the radial electric field induce different turbulent momentum fluxes in a tokamak. As a result, when the diamagnetic and E × B flows cancel giving zero net toroidal rotation, there will still be finite momentum transport. This may be particularly important near the plasma–wall boundary where a strong pressure drop is established and the two types of flows are similar in size and opposite in direction. The different momentum fluxes in this region can give significant intrinsic rotation peaking in the core with scaling and values similar to those observed in high confinement mode plasmas.
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  • diamagnetic 抗磁的
  • momentum 动量
  • tokamak 托卡马克
  • radial 放射状的
  • scaling 按比例缩小
  • peaking 引入尖脉冲
  • opposite 对生的
  • particularly 特别
  • observed 观察到的
  • region 地域