Mesoscale electric fluctuations interacting with zonal flows, magnetic fluctuations and turbulence
作者: K.J. ZhaoY. NagashimaP.H. DiamondJ.Q. DongK. ItohS.-I. ItohL.W. YanJ. ChengA. FujisawaS. InagakiY. KosugaM. SasakiZ.H. HuangD.L. YuQ. LiX.Q. JiX.M. SongY. HuangYi. LiuQ.W. YangX.T. DingX.R. DuanHL-2A team
作者单位: 1Southwestern Institute of Physics, PO Box 432, Chengdu, 610041, People’s Republic of China
2Research Institute for Applied mechanics, Kyushu University, Kasuga, Kasuga koen 6-1, 816-8580, Japan
3Center for Momentum Transport and Flow Organization, University of California at San Diego, CA 92093, United States of America
4Institute for Fusion Theory and Simulation, Zhejiang University, Hangzhou, 310027, People’s Republic of China
5National Institute for Fusion Science, Toki 509-5292, Japan
6Institute of Science and Technology Research, Chubu University, Kasugai, Aichi, 487-8501 Japan
刊名: Nuclear Fusion, 2017, Vol.57 (7)
来源数据库: Institute of Physics Journal
DOI: 10.1088/1741-4326/aa6f35
原始语种摘要: New mesoscale electric fluctuations (MSEFs) are identified in the edge plasmas of the HL-2A tokamak using multiple Langmuir probe arrays. The MSEFs, resulting from the synchronization and having components of dominant geodesic acoustic mode (GAM) and m / n = 6/2 potential fluctuations, are found at the same frequency as that of the magnetic fluctuations of m / n = 6/2 ( m and n are poloidal and toroidal mode numbers, respectively). The temporal evolutions of the MSEFs and the magnetic fluctuations clearly show the frequency entrainment and the phase lock between the GAM and the m / n = 6/2 magnetic fluctuations. The results indicate that GAMs and magnetic fluctuations can transfer energy through nonlinear synchronization. The nonlinear coupling analyses show that the MSEFs couple to...
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  • turbulence 湍流紊流
  • geodesic 测地的
  • magnetic 磁的
  • temporal 现世的
  • zonal 带状的
  • tokamak 托卡马克
  • nonlinear 非线性的
  • interacting 相克的
  • modulation 
  • modulated 巳的