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Nonlinear functional relation covering near- and far-marginal stability in ion temperature gradient driven turbulence
http://hdl.handle.net/10655/00013183
http://hdl.handle.net/10655/000131835dc9d62d-be4c-496b-80c7-8041c0f63b7f
名前 / ファイル | ライセンス | アクション |
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13336_Plasma_Phys._Control._Fusion (1.2 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2022-05-30 | |||||
タイトル | ||||||
タイトル | Nonlinear functional relation covering near- and far-marginal stability in ion temperature gradient driven turbulence | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | plasma turbulence | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | zonal flow | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | reduced model | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | gyrokinetic simulation | |||||
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 | |||||
著者 |
NAKAYAMA, Tomonari
× NAKAYAMA, Tomonari× NAKATA, Motoki× HONDA, Mitsuru× NUNAMI, Masanori× MATSUOKA, Seikichi |
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著者ID | ||||||
内容記述タイプ | Other | |||||
内容記述 | 0000-0002-6719-9013 | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | A novel nonlinear functional relation of turbulence potential intensity, zonal flow potential intensity, and ion thermal diffusivity that accurately reproduces nonlinear gyrokinetic simulations of toroidal ion temperature gradient (ITG) driven turbulence is proposed. Applying mathematical optimization techniques to find extremal solutions in high-dimensional parameter space, the optimal regression parameters in the functional form are determined to be valid for both near- and far-marginal regime of the ITG stability including the Dimits-shift. Then, the regression error of ∼5% is accomplished. In addition, it is clarified that the intensity ratio of the zonal flow and turbulence potential intensity is a crucial factor to determine the reproduction accuracy. | |||||
書誌情報 |
Plasma Physics and Controlled Fusion 巻 64, 号 7, p. 075007, 発行日 2022-06-02 |
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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 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA10643410 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1088/1361-6587/ac6ffc | |||||
権利 | ||||||
権利情報 | © 2022 The Author(s) | |||||
権利 | ||||||
権利情報 | Original Content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. | |||||
権利 | ||||||
権利情報 | Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. | |||||
情報源 | ||||||
関連名称 | Nakayama T et al 2022 Plasma Phys. Control. Fusion 64 075007 | |||||
関連サイト | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1088/1361-6587/ac6ffc | |||||
関連名称 | Publisher version | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
NAIS | ||||||
13336 |