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Study of turbulence intermittency in linear magnetized plasma
https://repo.qst.go.jp/records/79017
https://repo.qst.go.jp/records/790177e7c5731-f657-4a24-bf79-4f3f2754e7d5
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2020-02-20 | |||||
| タイトル | ||||||
| タイトル | Study of turbulence intermittency in linear magnetized plasma | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Zhang, Boyu
× Zhang, Boyu× Inagaki, Shigeru× Hasamada, Kazunobu× Yamasaki, Kotaro× Kin, Fumiyoshi× Nagashima, Yoshihiko× Yamada, Takuma× Fujisawa, Akihide× Fumiyoshi, Kin |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The intermittent behavior of a quasi-coherent density fluctuation is observed in a laboratory plasma. The quasi-coherent fluctuation is localized but intermittent events are observed in the whole region of plasma. Conditional averaging shows the intermittent events propagate from the central region of the magnetized plasma column to the peripheral region. Auto-correlation function of fluctuations and Hurst analysis reveal the intermittency is highly auto-correlated and the Hurst parameter reaches to 0.8, indicating the existence of self-similar behavior and long-range time correlation, and self-organized criticality dynamics might be the mechanism. Cross-bicoherence between different radii shows the nonlinear coupling between the quasi-coherent fluctuation and ambient turbulence, which will contribute to the generation of intermittency of turbulence. | |||||
| 書誌情報 |
Plasma Physics and Controlled Fusion 巻 61, 号 11, p. 115010, 発行日 2019-10 |
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| 出版者 | ||||||
| 出版者 | IOP Publishing | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0741-3335 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1088/1361-6587/ab434f | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://iopscience.iop.org/article/10.1088/1361-6587/ab434f | |||||
