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Global linear gyrokinetic simulation of energetic particle-driven instabilities in the LHD stellarator
http://hdl.handle.net/10655/00012821
http://hdl.handle.net/10655/00012821ea51d81c-6716-4445-a895-aceed13b2db5
名前 / ファイル | ライセンス | アクション |
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Nucl.Fusion_57_pp086018 (3.8 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2021-12-22 | |||||
タイトル | ||||||
タイトル | Global linear gyrokinetic simulation of energetic particle-driven instabilities in the LHD stellarator | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | stellarator | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | gyrokinetics | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | energetic particles | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Alfvén wave | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | LHD | |||||
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 |
SPONG, Donald A.
× SPONG, Donald A.× HOLOD, I.× TODO, Yasushi× OSAKABE, Masaki |
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著者ID | ||||||
内容記述タイプ | Other | |||||
内容記述 | 0000-0003-2370-1873 | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Energetic particles are inherent to toroidal fusion systems and can drive instabilities in the Alfvén frequency range, leading to decreased heating efficiency, high heat fluxes on plasma-facing components, and decreased ignition margin. The applicability of global gyrokinetic simulation methods to macroscopic instabilities has now been demonstrated and it is natural to extend these methods to 3D configurations such as stellarators, tokamaks with 3D coils and reversed field pinch helical states. This has been achieved by coupling the GTC global gyrokinetic PIC model to the VMEC equilibrium model, including 3D effects in the field solvers and particle push. This paper demonstrates the application of this new capability to the linearized analysis of Alfvénic instabilities in the LHD stellarator. For normal shear iota profiles, toroidal Alfvén instabilities in the n = 1 and 2 toroidal mode families are unstable with frequencies in the 75 to 110 kHz range. Also, an LHD case with non-monotonic shear is considered, indicating reductions in growth rate for the same energetic particle drive. Since 3D magnetic fields will be present to some extent in all fusion devices, the extension of gyrokinetic models to 3D configurations is an important step for the simulation of future fusion systems. | |||||
書誌情報 |
Nuclear Fusion 巻 57, 号 8, p. 086018, 発行日 2017-06-23 |
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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/10.1088/1741-4326/aa7601 | |||||
権利 | ||||||
権利情報 | ‘This is the Accepted Manuscript version of an article accepted for publication in Nuclear Fusion. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at https://doi.org/10.1088/1741-4326/aa7601.’ | |||||
情報源 | ||||||
関連名称 | Citation D.A. Spong et al 2017 Nucl. Fusion 57 086018 | |||||
関連サイト | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1088/1741-4326/aa7601 | |||||
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 | ||||||
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