Nonlinear energy transfer of drift-wave fluctuation in a cylindrical laboratory plasma

被引：1

作者：

Nagashima, Yoshihiko ^{[1
]}

Itoh, Sanae -I. ^{[2
]}

Shinohara, Shunjiro ^{[3
]}

Fukao, Masayuki ^{[4
]}

Fujisawa, Akihide ^{[5
]}

Terasaka, Kenichiro ^{[3
]}

Kawai, Yoshinobu ^{[3
]}

Kasuya, Naohiro ^{[5
]}

Yagi, Masatoshi ^{[2
]}

Inagaki, Shigeru ^{[2
]}

Yamada, Takuma ^{[1
]}

Itoh, Kimitaka ^{[5
]}

机构：

[1] Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa,509-5292, Japan

[2] Research Institute for Applied Mechanics, Kyushu University, Kasuga,816-8580, Japan

[3] Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga,816-8580, Japan

[4] Myojocho, Uji,611-001, Japan

[5] National Institute for Fusion Science, Toki,509-5292, Japan

来源：

Plasma and Fusion Research | 2008年 / 3卷

关键词：

Plasma waves - Nonlinear equations - Transfer functions - Plasma confinement - Potential energy;

D O I：

10.1585/pfr.3.056

中图分类号：

学科分类号：

摘要：

Nonlinear energy transfer of the drift-wave spectrumis investigated experimentally in a cylindrical laboratory plasma. Using the Hasegawa-Mima equation, the nonlinear transfer function of electrostatic potential energy in frequency space is estimated by bispectral analysis. The transfer function derived from the drift-wave spectrum indicates a forward cascading of energy transfer from fundamental to higher harmonic modes. © 2008 The Japan Society of Plasma Science and Nuclear Fusion Research.

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