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Energy exchange between electrons and ions in ion temperature gradient turbulence
http://hdl.handle.net/10655/0002000637
http://hdl.handle.net/10655/00020006370eec9622-c3ca-49c5-a30d-ca7896f297a8
名前 / ファイル | ライセンス | アクション |
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14294_Phys.Plasmas.pdf (828 KB)
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VoR_Phys.Plasmas_31,_062510.pdf (1.4 MB)
Download is available from 2025/6/13.
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2024-06-19 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Energy exchange between electrons and ions in ion temperature gradient turbulence | |||||
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 |
KATO, Tetsuji
× KATO, Tetsuji× SUGAMA, Hideo× WATANABE, Tomo-Hiko× NUNAMI, Masanori |
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著者ID | ||||||
内容記述タイプ | Other | |||||
内容記述 | ORCID 0009-0004-1263-8826 | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Microturbulence in magnetic confined plasmas contributes to energy exchange between particles of different species as well as the particle and heat fluxes. Although the effect of turbulent energy exchange has not been considered significant in previous studies, it is anticipated to have a greater impact than collisional energy exchange in low collisional plasmas such as those in future fusion reactors. In this study, gyrokinetic simulations are performed to evaluate the energy exchange due to ion temperature gradient (ITG) turbulence in a tokamak configuration. The energy exchange due to the ITG turbulence mainly consists of the cooling of ions in the -curvature drift motion and the heating of electrons streaming along a field line. It is found that the ITG turbulence transfers energy from ions to electrons regardless of whether the ions or electrons are hotter, which is in marked contrast to the energy transfer by Coulomb collisions. This implies that the ITG turbulence should be suppressed from the viewpoint of sustaining the high ion temperature required for fusion reactions since it prevents energy transfer from alpha-heated electrons to ions as well as enhancing ion heat transport toward the outside of the reactor. Furthermore, linear and nonlinear simulation analyses confirm the feasibility of quasilinear modeling for predicting the turbulent energy exchange in addition to the particle and heat fluxes. | |||||
言語 | en | |||||
書誌情報 |
en : Physics of Plasmas 巻 31, 号 6, p. 062510, 発行日 2024-06-14 |
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出版者 | ||||||
言語 | en | |||||
出版者 | AIP Publishing | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1070-664X | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA10987555 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1063/5.0204022 | |||||
権利 | ||||||
言語 | en | |||||
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 31, 062510 (2024) and may be found at https://doi.org/10.1063/5.0204022. Copyright 2024 Author(s). This article is distributed under a Creative Commons Attribution (CC BY) License. | |||||
情報源 | ||||||
言語 | en | |||||
関連名称 | T. Kato, H. Sugama, T.-H. Watanabe, M. Nunami; Energy exchange between electrons and ions in ion temperature gradient turbulence. Phys. Plasmas 1 June 2024; 31 (6): 062510. https://doi.org/10.1063/5.0204022 | |||||
関連サイト | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1063/5.0204022 | |||||
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 | ||||||
14294 |