決定論的汎用核特性解析コードGenesisRPCの開発,2; 核熱結合計算への適用

Development of deterministic neutronics analysis code GenesisRPC for general purpose, 2; Application to neutronics-thermal hydraulics coupling calculations

Liong, C.*; 山本 章夫*; 遠藤 知弘*; 多田 健一   

Liong, C.*; Yamamoto, Akio*; Endo, Tomohiro*; Tada, Kenichi

三次元非均質体系の解析ができるGenesisRPCの特徴を活かし、原子力機構で開発されたサブチャンネル解析コードACE-3Dと核熱結合計算を実施した。BWR 88単一集合体を模擬した体系において、燃料棒単位の三次元出力分布及び冷却材温度・ボイド率分布を計算した。

The purpose of this study is to apply neutronics thermal-hydraulics coupling scheme between the three-dimensional heterogeneous neutronics analysis code GenesisRPC and the JAEA-developed subchannel analysis code ACE-3D. As a test case, a simplified BWR assembly is used to perform the coupled simulation. The three-dimensional pin-by-pin power, pin-by-pin subchannel-wise coolant temperature, and void distributions were calculated.