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Reduction of MOC discretization errors through a minimization of source ratio variances
http://hdl.handle.net/2237/25272
http://hdl.handle.net/2237/2527279d20161-30da-46d3-9040-bb9440d7e051
名前 / ファイル | ライセンス | アクション |
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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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× Yamamoto, Akio× Endo, Tomohiro× Tatsumi, Masahiro |
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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 |
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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 |