Item type |
itemtype_ver1(1) |
公開日 |
2021-05-31 |
タイトル |
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タイトル |
Effects of ion polarization and finite-β on heat transport in slab electron-temperature-gradient driven turbulencea |
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言語 |
en |
著者 |
Maeyama, S.
Kusaka, S.
Watanabe, T.-H.
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アクセス権 |
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アクセス権 |
open access |
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アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
権利 |
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言語 |
en |
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権利情報 |
Copyright 2021 Author(s). Published under an exclusive license by AIP Publishing. This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing.The following article appeared in (Physics of Plasmas 28, 052512 (2021)) and may be found at (https://doi.org/10.1063/5.0044435). |
内容記述 |
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内容記述タイプ |
Abstract |
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内容記述 |
Effects of kinetic ions and electromagnetic fluctuations on slab electron-temperature-gradient (ETG) driven turbulence are investigated by means of gyrokinetic simulations covering scales from electron gyroradius to ion gyroradius and electron skin depth. Linear growth rates of electrostatic ETG modes are enhanced by the ion polarization at ion gyroradius scale. Nonlinear simulations show that this low-poloidalwavenumber instability induces ion-scale eddies which cause heat transport higher than that in the adiabatic ion model. In finite-b plasma, electromagnetic fluctuations stabilize the low-wavenumber modes, and suppress the turbulent heat transport. Additionally, electromagnetic effects also weaken zonal flow generation, which slightly enhances turbulent transport than that in the electrostatic adiabatic ion model. |
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言語 |
en |
出版者 |
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出版者 |
AIP Publishing |
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言語 |
en |
言語 |
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言語 |
eng |
資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
出版タイプ |
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出版タイプ |
VoR |
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出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
収録物識別子 |
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収録物識別子タイプ |
PISSN |
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収録物識別子 |
1070-664X |
収録物識別子 |
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収録物識別子タイプ |
EISSN |
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収録物識別子 |
1089-7674 |
書誌情報 |
en : Physics of Plasmas
巻 28,
p. 052512,
発行日 2021-05-25
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ファイル公開日 |
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日付 |
2022-05-25 |
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日付タイプ |
Available |