Spontaneous Ion Temperature Gradient in Inhomogeneous Magnetic Fields and Its Effect on the Parallel Heat Transport
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- TOGO Satoshi
- Plasma Research Center, University of Tsukuba
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- TAKIZUKA Tomonori
- Graduate School of Engineering, Osaka University
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- SAKAMOTO Mizuki
- Plasma Research Center, University of Tsukuba
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- EZUMI Naomichi
- Plasma Research Center, University of Tsukuba
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- OGAWA Yuichi
- Graduate School of Frontier Sciences, University of Tokyo
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- IBANO Kenzo
- Graduate School of Engineering, Osaka University
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- NOJIRI Kunpei
- Plasma Research Center, University of Tsukuba
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- IIJIMA Takaaki
- Plasma Research Center, University of Tsukuba
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- KINOSHITA Yosuke
- Plasma Research Center, University of Tsukuba
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- HARA Toshiki
- Plasma Research Center, University of Tsukuba
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- NAKASHIMA Yousuke
- Plasma Research Center, University of Tsukuba
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抄録
<p>A new closure model for the parallel conductive heat flux of the perpendicular component of ion energy (qi,⊥) is proposed which considers the effect of the spontaneous parallel gradient of the perpendicular ion temperature in inhomogeneous magnetic fields. Profiles of plasma parameters and the particle confinement efficiency are compared between the new qi,⊥ model and a conventional one in a simple mirror system. It is found that the conservation of the magnetic moment is reproduced with the new qi,⊥ model. Comparisons of ion power flux profiles show that the new qi,⊥ model changes the direction of qi,⊥ keeping the spontaneous parallel gradient of the perpendicular ion temperature. Almost linear relations between the particle confinement time and the ion-ion Coulomb collision time are also obtained with both qi,⊥ models.</p>
収録刊行物
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- Plasma and Fusion Research
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Plasma and Fusion Research 14 (0), 2403010-2403010, 2019-01-24
一般社団法人 プラズマ・核融合学会
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詳細情報
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- CRID
- 1390001288123733504
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- NII論文ID
- 130007603372
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- NII書誌ID
- AA12346675
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- ISSN
- 18806821
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- HANDLE
- 2241/00157948
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- IRDB
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可