Coexistence of Zonal Flows and Drift-Waves in a Cylindrical Magnetized Plasma

• Nagashima Yoshihiko

  Research Institute for Applied Mechanics, Kyushu University

• Itoh Sanae-I.

  Research Institute for Applied Mechanics, Kyushu University

• Shinohara Shunjiro

  Interdisciplinary Graduate School of Engineering Science, Kyushu University

• Fukao Masayuki

• Fujisawa Akihide

  National Institute for Fusion Science

• Terasaka Kenichiro

  Interdisciplinary Graduate School of Engineering Science, Kyushu University

• Kawai Yoshinobu

  Research Institute for Applied Mechanics, Kyushu University

• Kasuya Naohiro

  National Institute for Fusion Science

• Tynan George R.

  Center for Energy Research, University of California, San Diego

• Diamond Patrick H.

  Center for Astrophysics and Space Sciences, University of California, San Diego

• Yagi Masatoshi

  Research Institute for Applied Mechanics, Kyushu University

• Inagaki Shigeru

  Research Institute for Applied Mechanics, Kyushu University

• Yamada Takuma

  Graduate School of Frontier Science, University of Tokyo

• Itoh Kimitaka

  National Institute for Fusion Science

抄録

Spatiotemporal structures of fluctuations with frequencies lower than the ion cyclotron frequency in a cylindrical magnetized plasma are investigated. Drift-wave and low-frequency zonal flow coexist. Electrostatic potentials of the zonal flow and the drift-wave are distributed widely in radius. The radial wave number profile of the zonal flow has a shear structure at the radial location where the drift-wave has a maximal normalized fluctuation amplitude. On the other hand, the radial wave number profile of the drift-wave shows vortex tilting, resulting in the generation of stationary turbulence Reynolds stress gradient per mass density. The envelope and bispectral analyses indicate significant nonlinear interactions between the zonal flow and the drift-wave.

収録刊行物

• Ｊｏｕｒｎａｌ　ｏｆ　ｔｈｅ　Ｐｈｙｓｉｃａｌ　Ｓｏｃｉｅｔｙ　ｏｆ　Ｊａｐａｎ

  Ｊｏｕｒｎａｌ　ｏｆ　ｔｈｅ　Ｐｈｙｓｉｃａｌ　Ｓｏｃｉｅｔｙ　ｏｆ　Ｊａｐａｎ 77 (11), 114501-114501, 2008

  一般社団法人 日本物理学会

キーワード

• turbulence
• drift-wave
• zonal flow
• linear magnetized plasma
• envelope analysis
• bispectral analysis

詳細情報

• CRID: 1390001204198032384
• NII論文ID: 130005436262
• NII論文ID: 110006983744
• NII論文ID: 210000107526
• NII書誌ID: AA00704814
• DOI: 10.1143/jpsj.77.114501
• BIBCODE: 2008JPSJ...77k4501N
• ISSN: 13474073
• ISSN: 00319015
• NDL書誌ID: 9706342
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I9706342
• Web Site: https://journals.jps.jp/doi/pdf/10.1143/JPSJ.77.114501
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可