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Flow-Induced New Channels of Energy Exchange in Multi-Scale Plasma Dynamics – Revisiting Perturbative Hybrid Kinetic-MHD Theory
https://repo.qst.go.jp/records/47754
https://repo.qst.go.jp/records/477540fe4fd12-c734-4670-90d8-244087ec1429
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2017-04-25 | |||||
タイトル | ||||||
タイトル | Flow-Induced New Channels of Energy Exchange in Multi-Scale Plasma Dynamics – Revisiting Perturbative Hybrid Kinetic-MHD Theory | |||||
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 |
白石, 淳也
× 白石, 淳也× 宮戸, 直亮× 松永, 剛× 白石 淳也× 宮戸 直亮× 松永 剛 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | It is found that new channels of energy exchange between macro- and microscopic dynamics exist in plasmas. They are induced by macroscopic plasma flow. This finding is based on the kinetic-magnetohydrodynamic (MHD) theory, which analyses interaction between macroscopic (MHD-scale) motion and microscopic (particle-scale) dynamics. The kinetic-MHD theory is extended to include effects of macroscopic plasma flow self-consistently. The extension is realised by generalising an energy exchange term due to wave-particle resonance, denoted by δ WK. The first extension is generalisation of the particle’s Lagrangian, and the second one stems from modification to the particle distribution function due to flow. These extensions lead to a generalised expression of δ WK, which affects the MHD stability of plasmas. | |||||
書誌情報 |
Scientific Reports 巻 6, p. 25644-1-25644-7, 発行日 2016-05 |
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出版者 | ||||||
出版者 | Nature Publishing Group | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 2045-2322 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1038/srep25644 | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | http://www.nature.com/articles/srep25644 | |||||
関連名称 | http://www.nature.com/articles/srep25644 |