基于TPTF的高压水平分层流实验数据对Relap5/Mod3.2的改进

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Improvement of Relap5/Mod3.2 Based on High-Pressure Horizontal-Stratified TPTF Experiment

Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, 100084, China

摘要: 基于Relap5/Mod3.2程序计算结果与日本的两相流试验装置(TPTF)实验数据进行比较,显示出Relap5程序在计算水平管道分层流的空泡份额分布方面,与实验数据有一定偏差。分析认为,Relap5程序在水平分层流的过渡区域及过渡区域相间曳力公式的设置上存在问题,导致程序错误地将部分水平分层流工况预测为其他流型。在修改过渡流型判定准则及过渡流型平均公式后,新的计算结果表明:采用本文修改后的计算结果能更好地与实验结果相符合。
- Relap5/Mod3.2程序 /
- TPTF实验 /
- 水平分层流 /
- 流型过渡区域 /
- 相间曳力
Abstract: The calculation of Relap5/Mod3.2 and Two Phase Test Facility（TPTF,Japan） experiment data is compared,which shows that Relap5 gives some derivation of void fraction distribution in the horizontal pipe.The analysis reveals that the horizontal junction flow regime of Relap5 has some error on the transition region and the transition equation of the horizontal-stratified flow regime,resulting in Relap5 mistaking some stratified condition as other condition.After modifying the transition region and the interphase drag equation on the transition region,new results from new Relap5 have been improved compared with the experiment data.
- Relap5/Mod3.2 /
- TPTF experiment /
- Horizontal-stratified flow /
- Flow transition zone /
- Interphase drag