Coexistence of Zonal Flows and Drift-Waves in a Cylindrical Magnetized Plasma
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- Nagashima Yoshihiko
- Research Institute for Applied Mechanics, Kyushu University
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- Itoh Sanae-I.
- Research Institute for Applied Mechanics, Kyushu University
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- Shinohara Shunjiro
- Interdisciplinary Graduate School of Engineering Science, Kyushu University
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- Fujisawa Akihide
- National Institute for Fusion Science
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- Terasaka Kenichiro
- Interdisciplinary Graduate School of Engineering Science, Kyushu University
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- Kawai Yoshinobu
- Research Institute for Applied Mechanics, Kyushu University
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- Kasuya Naohiro
- National Institute for Fusion Science
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- Tynan George R.
- Center for Energy Research, University of California, San Diego
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- Diamond Patrick H.
- Center for Astrophysics and Space Sciences, University of California, San Diego
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- Yagi Masatoshi
- Research Institute for Applied Mechanics, Kyushu University
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- Inagaki Shigeru
- Research Institute for Applied Mechanics, Kyushu University
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- Yamada Takuma
- Graduate School of Frontier Science, University of Tokyo
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- Itoh Kimitaka
- National Institute for Fusion Science
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Abstract
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.
Journal
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- Journal of the Physical Society of Japan
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Journal of the Physical Society of Japan 77 (11), 114501-114501, 2008
THE PHYSICAL SOCIETY OF JAPAN
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Details 詳細情報について
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- CRID
- 1390001204198032384
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- NII Article ID
- 130005436262
- 110006983744
- 210000107526
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- NII Book ID
- AA00704814
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- BIBCODE
- 2008JPSJ...77k4501N
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- ISSN
- 13474073
- 00319015
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- NDL BIB ID
- 9706342
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed