SIMMER-III構造材モデル; モデル及び手法の記述

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Author: 神山健司ほか

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Publication date: 2004-07

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Note (General)：: An advanced safety analysis code, SIMMER-III has been developed to evaluate the consequence of postulated core disruptive accidents of liquid-metal fa...

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Summary, etc.：: An advanced safety analysis code, SIMMER-III has been developed to evaluate the consequence of postulated core disruptive accidents of liquid-metal fa...

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Material Type: 文書・図像類
Title: SIMMER-III構造材モデル; モデル及び手法の記述
Author/Editor: 神山健司
近藤悟
Author Heading: 神山健司
近藤悟
Publication Date: 2004-07
Publication Date (W3CDTF): 2004-07
Alternative Title: SIMMER-III Structure Model; Model and Method Description
Periodical title: JNC TN9400 2004-043
Text Language Code: eng
Target Audience: 一般
Note (General): An advanced safety analysis code, SIMMER-III has been developed to evaluate the consequence of postulated core disruptive accidents of liquid-metal fast reactors (LMFRs). The present report describes a structure model for SIMMER-III to analyze a disrupting core. The structure in SIMMER-III, consisting of fuel pins and subassembly can walls, is modeled to exchange heat and mass with multiphase multicomponent flow of disrupted core material and to provide flow channel for fluids. In addition, complex behavior is modeled which changes configurations of structures as a result of heat and mass transfer from molten core materials. The structure model described in the present report alleviates some of limitations in the previous code SIMMER-II, and hence it is expected that the future researches with SIMMER-III will significantly improve the reliability and accuracy of LMFR safety analysis.
SIMMER-IIIコードは、液体金属冷却高速炉の炉心崩壊事故の影響を評価するため開発されてきた。本報告書では、崩壊する炉心を解析するためのSIMMER-III構造材モデルを記述する。SIMMER-IIIの構造材は、集合体ラッパ管および燃料ピンといった固体構造にて構成され、崩壊炉心物質の多相・多成分流と熱および質量移行を行なうとともに、流体へ旅路を与えるようモデル化されている。加えて、溶融炉心物質からの熱および質量移行の結果として、構造材の形状が変化する複雑な挙動もモデル化されている。本報告書に記述される構造材モデルによって先行コードSIMMER-IIに見られた構造材のモデル化に開する種々の限界が改善され、SIMMER-IIIコードを用いた高速炉の安全解析の信頼性および精度の向上が期待される。
Source: /JNC-TN9400-2004-043.pdf （fulltext）
https://jopss.jaea.go.jp/pdfdata/JNC-TN9400-2004-043.pdf
Access Restrictions: 限定公開
Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
https://irdb.nii.ac.jp
Original Data Provider (Database): 日本原子力研究開発機構 : JOPSS:JAEA Originated Papers Searching System