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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

Reduction of MOC discretization errors through a minimization of source ratio variances

http://hdl.handle.net/2237/25272
http://hdl.handle.net/2237/25272
79d20161-30da-46d3-9040-bb9440d7e051
名前 / ファイル ライセンス アクション
JNST_53_11_pp1858-1869.pdf JNST_53_11_pp1858-1869.pdf ファイル公開:2017/04/20 (957.8 kB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2016-12-20
タイトル
タイトル Reduction of MOC discretization errors through a minimization of source ratio variances
言語 en
著者 Tabuchi, Masato

× Tabuchi, Masato

WEKO 68396

en Tabuchi, Masato

Search repository
Yamamoto, Akio

× Yamamoto, Akio

WEKO 68397

en Yamamoto, Akio

Search repository
Endo, Tomohiro

× Endo, Tomohiro

WEKO 68398

en Endo, Tomohiro

Search repository
Tatsumi, Masahiro

× Tatsumi, Masahiro

WEKO 68399

en Tatsumi, Masahiro

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 20/04/2016, available online: http://www.tandfonline.com/10.1080/00223131.2016.1171172
キーワード
主題Scheme Other
主題 Reactor physics
キーワード
主題Scheme Other
主題 method of characteristics
キーワード
主題Scheme Other
主題 numerical analysis
キーワード
主題Scheme Other
主題 discretization error
キーワード
主題Scheme Other
主題 depletion calculation
抄録
内容記述 A new technique to reduce discretization errors for ray tracing in the method of characteristics (MOC) is proposed focusing on depletion calculations of single and multi-assembly geometries. In order to efficiently carry out depletion calculations, a calculation scheme using the superhomogenization (SPH) method can be used. However, the discretization errors are caused by changes of neutron sources and total cross sections according to a depletion. This fact means that improvement of accuracy cannot be expected by the calculation scheme with the SPH method when changes of the above parameters are significant. In order to mitigate this problem, a new approach is developed. In the new approach, the discretization errors are reduced by minimizing a variance of a certain parameter which is composed of a ratio of neutron source to total cross section. The verification results suggest that accuracy is degraded by the SPH method as expected especially in a geometry where neutron sources and total cross sections are drastically changing through a depletion. On the other hand, the new approach gives more accurate results compared to the conventional MOC in all calculation cases. Consequently, improvement of calculation efficiency by the new approach 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/10.1080/00223131.2016.1171172
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 53, 号 11, p. 1858-1869, 発行日 2016-04-20
著者版フラグ
値 author
URI
識別子 http://dx.doi.org/10.1080/00223131.2016.1171172
識別子タイプ DOI
URI
識別子 http://hdl.handle.net/2237/25272
識別子タイプ HDL
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