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  1. B200 工学部/工学研究科
  2. B200a 雑誌掲載論文
  3. 学術雑誌

Derivation of bootstrap current fraction scaling formula for 0-D system code analysis

http://hdl.handle.net/2237/00031529
017bae46-e7ba-44ba-a26f-54ca0e473f1d
名前 / ファイル ライセンス アクション
FED_2nd_sakai_6.pdf FED_2nd_sakai_6 (3.4 MB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2020-02-19
タイトル
タイトル Derivation of bootstrap current fraction scaling formula for 0-D system code analysis
著者 Sakai, Ryosuke

× Sakai, Ryosuke

WEKO 96197

Sakai, Ryosuke

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Fujita, Takaaki

× Fujita, Takaaki

WEKO 96198

Fujita, Takaaki

Search repository
Okamoto, Atsushi

× Okamoto, Atsushi

WEKO 96199

Okamoto, Atsushi

Search repository
権利
権利情報 © 2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
抄録
内容記述 We constructed new scaling formulas for the bootstrap current faction fBS for tokamaks with full non-inductive operation with positive shear safety factor q profiles. A fitting database was built by the ACCOME code, which contains 12,150 cases of self-consistent equilibria with the q profiles satisfying q(p)≥1.0 and q95≥3.0 in 0≤p<1 , where p is the normalized minor radius and q95 is q at the 95% poloidal flux surface. From the fitting database, we derived the formulas by the multiple regression analysis. The best formula contained the inverse aspect ratio ????, the poloidal beta, the internal inductance, q95/q(0), and the profile shape indices for density and temperature as input. The Root Mean Squared Error for the fitting database of this formula was 0.025. We tested the derived formulas to three kinds of datasets and compared with the K. Gi models and the ITER Physics Design Guidelines model. The first test is for the compact neutron source with the same plasma size with the fitting database, the second (including reversed shear) and the third ones (positive shear only) are for the conventional reactor size. The best formula seems to be applicable to tokamak plasmas with a wide range of parameters.
内容記述タイプ Abstract
内容記述
内容記述 ファイル公開:2021-12-01
内容記述タイプ Other
出版者
出版者 Elsevier
言語
言語 eng
資源タイプ
資源タイプresource http://purl.org/coar/resource_type/c_6501
タイプ journal article
DOI
関連識別子
識別子タイプ DOI
関連識別子 https://doi.org/10.1016/j.fusengdes.2019.111322
ISSN(print)
収録物識別子タイプ ISSN
収録物識別子 0920-3796
書誌情報 Fusion Engineering and Design

巻 149, p. 111322, 発行日 2019-12
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