CATHARE 2V2.5程序闪蒸模型的评估和改进

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Qualification and Improvement of CATHARE 2V2.5 Flashing Model with Critical Flow Rate Experiments Data

1. National Key Laboratory of Bubble Physics and Natural Circulation, Nuclear Power Institute of China, Chengdu, 610041, China;
2. Commissariat A L'Energie Atomique, France

摘要: 利用BETHSY喷嘴和Super-Moby-Dick(SMD)喷嘴临界流试验数据对CATHARE2V2.5程序Rev.6.1和Rev.5两个版本中基本物理关系式模块的闪蒸模型进行了评估。评估结果表明,程序计算结果与试验数据吻合较好。其中,Rev.6.1的预测结果比Rev.5的结果更精确,尤其对于SMD喷嘴试验,Rev.6.1的计算结果与试验数据十分吻合,但对于BETHSY喷嘴试验,Rev.6.1的预测值偏高。然后,利用敏感性分析对闪蒸模型进行了局部改进。
- 评估 /
- CATHARE程序 /
- 闪蒸模型 /
- 临界流 /
- 敏感性分析
Abstract: In the paper, the qualification of flashing models of CATHARE 2 V2.5 revision 5 （Rev.5） and revision 6.1（Rev.6.1） is carried out. The concerned critical flow rate experiments include BETHSY nozzle and Super-Moby-Dick （SMD） nozzle tests. The calculated results with Rev.6.1 and with Rev.5 are compared in the paper. On the whole, a good agreement can be shown using two revisions. The prediction of critical flow rate using Rev.6.1 is better than that using Rev.5. For SMD nozzle tests, the Rev. 6 results indicate a better agreement with the experimental data. But for BETHSY nozzle tests, the prediction of Rev.6.1 is over-estimated. The sensitivity study for improving the flashing model is also introduced in the paper.
- Qualification /
- CATHARE code /
- Flashing model /
- Critical flow rate /
- Sensitivity study