Experimental study of cross phase influence on Reynolds stress in the HL-2A tokamak
作者: D. GuoL. NieR. KeM. XuZ.H. WangT. LongY.F. WuB.D. YuanS.B. GongH. LiuHL-2A Team
作者单位: 1Southwestern Institute of Physics, PO Box 432, Chengdu 610041, People’s Republic of China
2Department of Engineering Physics, Tsinghua University, Beijing, China, 10084, People’s Republic of China
3Department of Nuclear Science and Technology, University of Science and Technology of China, Jinzhai Road 96#, 230026, Hefei, People’s Republic of China
刊名: Nuclear Fusion, 2018, Vol.58 (2)
来源数据库: Institute of Physics Journal
DOI: 10.1088/1741-4326/aa9588
原始语种摘要: The cross phase between radial velocity perturbation and poloidal velocity perturbation plays an important role in the radial distribution of Reynolds stress. Recently, a novel theory of cross-phase dynamics predicts that, depending on the strength of the E × B shearing, the cross phase can stay in two different states: phase locked state(weak shear regime) and phase slipping state(strong shear regime). For the first time we divided Reynolds stress into three parts, turbulence fluctuation, cross phase and coherence between and , and studied their relative influences on Reynolds stress in different regimes. The profile of Reynolds stress and its three parts are measured separately by using multi-tipped Langmuir probe array. We observe that the three parts contribute to the radial...
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  • Reynolds 雷诺
  • phase 相位
  • cross 十字
  • stress 应力
  • radial 放射状的
  • coherence 相干性
  • perturbation 扰动
  • shear 切变
  • distribution 分布
  • state 状态