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The Eulerian variational formulation of the gyrokinetic system in general spatial coordinates
http://hdl.handle.net/10655/00012616
http://hdl.handle.net/10655/000126165da0d95f-2930-49d7-ac61-ebfa6e2e00c7
名前 / ファイル | ライセンス | アクション |
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Phys.Plasmas_pp22312 (240.9 kB)
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VoR_Phys.Plasmas_28_022312 (913.1 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2021-07-28 | |||||
タイトル | ||||||
タイトル | The Eulerian variational formulation of the gyrokinetic system in general spatial coordinates | |||||
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 | |||||
著者 |
SUGAMA, Hideo
× SUGAMA, Hideo× MATSUOKA, Keisuke× NUNAMI, Masanori× SATAKE, Shinsuke |
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著者ID | ||||||
内容記述タイプ | Other | |||||
内容記述 | 0000-0001-5444-1758 | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The Eulerian variational formulation of the gyrokinetic system with electrostatic turbulence is presented in general spatial coordinates by extending our previous work [H. Sugama et al., Phys. Plasmas 25, 102506 (2018)]. The invariance of the Lagrangian of the system under an arbitrary spatial coordinate transformation is used to derive the local momentum balance equation satisfied by the gyrocenter distribution functions and the turbulent potential, which are given as solutions of the governing equations. In the symmetric background magnetic field, the derived local momentum balance equation gives rise to the local momentum conservation law in the direction of symmetry. This derivation is in contrast to the conventional method using the spatial translation in which the asymmetric canonical pressure tensor generally enters the momentum balance equation. In the present study, the variation of the Lagrangian density with respect to the metric tensor is taken to directly obtain the symmetric pressure tensor, which includes the effect of turbulence on the momentum transport. In addition, it is shown in this work how the momentum balance is modified when the collision and/or external source terms are added to the gyrokinetic equation. The results obtained here are considered useful for global gyrokinetic simulations investigating both neoclassical and turbulent transport processes even in general non-axisymmetric toroidal systems. | |||||
書誌情報 |
Physics of Plasmas 巻 28, p. 022312, 発行日 2021-02-18 |
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出版者 | ||||||
出版者 | AIP Publishing | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1070664X | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA10987555 | |||||
権利 | ||||||
権利情報 | This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Physics of Plasmas 28, 022312 (2021) and may be found at https://doi.org/10.1063/5.0027905. | |||||
権利 | ||||||
権利情報 | Copyright 2021 Author(s). This article is distributed under a Creative Commons Attribution (CC BY) License.” | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://aip.scitation.org/doi/abs/10.1063/5.0027905 | |||||
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 | ||||||
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