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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

Estimation of sensitivity coefficients of core characteristics based on reduced-order modeling using sensitivity matrix of assembly characteristics

http://hdl.handle.net/2237/26849
http://hdl.handle.net/2237/26849
dbbc81cf-5f3f-4972-add7-d278b1eda3b6
名前 / ファイル ライセンス アクション
manuscript_final.pdf manuscript_final.pdf ファイル公開:2018/03/14 (440.3 kB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2017-07-31
タイトル
タイトル Estimation of sensitivity coefficients of core characteristics based on reduced-order modeling using sensitivity matrix of assembly characteristics
言語 en
著者 Katano, Ryota

× Katano, Ryota

WEKO 72910

en Katano, Ryota

Search repository
Endo, Tomohiro

× Endo, Tomohiro

WEKO 72911

en Endo, Tomohiro

Search repository
Yamamoto, Akio

× Yamamoto, Akio

WEKO 72912

en Yamamoto, Akio

Search repository
Abdo, Mohammad

× Abdo, Mohammad

WEKO 72913

en Abdo, Mohammad

Search repository
Abdel-Khalik, Hany

× Abdel-Khalik, Hany

WEKO 72914

en Abdel-Khalik, Hany

Search repository
アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
権利
言語 en
権利情報 This is an Accepted Manuscript of an article published by Taylor & Francis Group in Journal of Nuclear Science and Technology on 14/03/2017, available online: http://dx.doi.org/10.1080/00223131.2017.1299052.
キーワード
主題Scheme Other
主題 Reduced order modeling
キーワード
主題Scheme Other
主題 sensitivity coefficient
キーワード
主題Scheme Other
主題 active subspace
キーワード
主題Scheme Other
主題 assembly calculation
キーワード
主題Scheme Other
主題 light water reactor
キーワード
主題Scheme Other
主題 numerical analysis
抄録
内容記述 We propose an estimation method of sensitivity coefficients of core neutronics parameters based on a multi-level reduced-order modeling approach. The idea is to use lower-level models to identify the dominant input parameter variations, constrained to the so-called active subspace, which are employed to determine the sensitivity coefficients of the core neutronic parameters. In our implementation, the lower-level model is represented by two-dimensional assembly calculations, which are employed in the preparation of the few-group cross-sections for core-wide calculations. The active subspace basis is estimated using the singular value decomposition of sensitivity matrices of assembly neutronics parameters. In numerical verification calculation, sensitivity coefficients of core characteristics for a typical three-loop PWR equilibrium-cycle are estimated using the proposed method and the direct method. Comparison of these two results shows that the proposed method well reproduces the results obtained by the direct method with lower calculation costs. Through the verification calculations, applicability of the proposed method to practical light water reactor analysis is confirmed.
言語 en
内容記述タイプ Abstract
出版者
言語 en
出版者 Taylor & Francis
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
出版タイプ
出版タイプ AM
出版タイプResource http://purl.org/coar/version/c_ab4af688f83e57aa
DOI
関連タイプ isVersionOf
識別子タイプ DOI
関連識別子 https://doi.org/10.1080/00223131.2017.1299052
ISSN
収録物識別子タイプ PISSN
収録物識別子 0022-3131
書誌情報 en : Journal of Nuclear Science and Technology

巻 54, 号 6, p. 637-647, 発行日 2017-03-14
著者版フラグ
値 author
URI
識別子 http://dx.doi.org/10.1080/00223131.2017.1299052
識別子タイプ DOI
URI
識別子 http://hdl.handle.net/2237/26849
識別子タイプ HDL
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