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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/2237/26849dbbc81cf-5f3f-4972-add7-d278b1eda3b6
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
manuscript_final.pdf ファイル公開：2018/03/14 (440.3 kB)
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| 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× Endo, Tomohiro× Yamamoto, Akio× Abdo, Mohammad× Abdel-Khalik, Hany |
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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 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 | ||||||
| 内容記述タイプ | Abstract | |||||
| 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 | |||||
| 出版者 | ||||||
| 出版者 | Taylor & Francis | |||||
| 言語 | en | |||||
| 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 |
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| 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 | |||||
