Azimuthal inhomogeneity of turbulence structure and its impact on intermittent particle transport in linear magnetized plasmas

• Kobayashi, Tatsuya

• INAGAKI, Shigeru

• Sasaki, Makoto

抄録

0000-0001-5669-1937

Fluctuation component in the turbulence regime is found to be azimuthally localized at a phase of the global coherent modes in a linear magnetized plasma PANTA. Spatial distribution of squared bicoherence is given in the azimuthal cross section as an indicator of nonlinear energy transfer function from the global coherent mode to the turbulence. Squared bicoherence is strong at a phase where the turbulence amplitude is large. As a result of the turbulence localization, time evolution of radial particle flux becomes bursty. Statistical features such as skewness and kurtosis are strongly modified by the localized turbulence component, although contribution to mean particle flux profile is small.

収録刊行物

• Physics of Plasmas

  Physics of Plasmas 22 (11), 112301-, 2015-11-03

  AIP Publishing

詳細情報

• CRID: 1050571948037749248
• NII論文ID: 120007176995
• NII書誌ID: AA10987555
• ISSN: 1070664X
• HANDLE: 10655/00012732
• Web Site: https://nifs-repository.repo.nii.ac.jp/records/10754
• 本文言語コード: en
• 資料種別: journal article
• データソース種別:
  • IRDB
  • CiNii Articles