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Turbulent transport of heat and particles in a high ion temperature discharge of the Large Helical Device
http://hdl.handle.net/10655/00013474
http://hdl.handle.net/10655/00013474d2618f49-43c2-4b3a-92db-6efa91a55d95
名前 / ファイル | ライセンス | アクション |
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9650_Nucl.Fusion (305.0 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2022-09-13 | |||||
タイトル | ||||||
タイトル | Turbulent transport of heat and particles in a high ion temperature discharge of the Large Helical Device | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | turbulent transport | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | stellarator and heliotron | |||||
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 |
ISHIZAWA, Akihiro
× ISHIZAWA, Akihiro× WATANABE, Tomo-Hiko× SUGAMA, Hideo× NUNAMI, Masanori× TANAKA, Kenji× MAEYAMA, Shinya× NAKAJIMA, Noriyoshi |
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著者ID | ||||||
内容記述タイプ | Other | |||||
内容記述 | 0000-0002-5323-8448 | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Turbulent transport in a high ion temperature discharge of the Large Helical Device (LHD) is investigated by means of electromagnetic gyrokinetic simulations, which include kinetic electrons, magnetic perturbations, and full geometrical effects. Including kinetic electrons enables us to firstly evaluate the particle and the electron heat fluxes caused by turbulence in LHD plasmas. It is found that the electron energy transport reproduces the experimental result, and that the particle flux is negative. The contribution of magnetic perturbation to the transport is small because of very low beta. The turbulence is driven by the ion temperature gradient instability, and the effect of kinetic electrons enhances the growth rate larger than that from the adiabatic electron calculation. The ion energy flux is larger than that observed in the experiment, while the flux is close to the experimental observation when the temperature gradient is reduced 20% in the simulation. This significant sensitivity of the energy flux implies that the profile in the experiment is close to the critical temperature gradient. The critical gradient for turbulent energy flux is similar to that for the linear instability, i.e., the Dimits shift is small. This is because the zonal flow in the LHD is weaker than that in tokamaks. | |||||
書誌情報 |
Nuclear Fusion 巻 55, 号 4, p. 043024, 発行日 2015-03-30 |
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出版者 | ||||||
出版者 | IOP Publishing | |||||
出版者 | ||||||
出版者 | International Atomic Energy Agency | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0029-5515 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00759871 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1088/0029-5515/55/4/043024 | |||||
権利 | ||||||
権利情報 | This is the Accepted Manuscript version of an article accepted for publication in Nuclear Fusion. | |||||
権利 | ||||||
権利情報 | IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. | |||||
権利 | ||||||
権利情報 | The Version of Record is available online at https://doi.org/10.1088/0029-5515/55/4/043024. | |||||
情報源 | ||||||
関連名称 | A. Ishizawa et al 2015 Nucl. Fusion 55 043024 | |||||
関連サイト | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1088/0029-5515/55/4/043024 | |||||
関連名称 | Publisher version | |||||
著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
NAIS | ||||||
9650 |