| 沸腾两相自然循环系统动态不稳定性的数值分析 |
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| 引用本文： | 姚伟,匡波,杨燕华,徐济滗. 沸腾两相自然循环系统动态不稳定性的数值分析[J]. 原子能科学技术, 2002, 36(1): 62-66 |
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| 作者姓名： | 姚伟 匡波 杨燕华 徐济滗 |
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| 作者单位： | 上海交通大学动力与能源工程学院,上海,200030 |
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| 基金项目： | 国家自然科学基金资助项目 ( 5 97760 4 2 ) |
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| 摘 要： | 在先进核反应堆中 ,为克服沸腾两相自然循环系统沸腾起始点和干涸点等突变点处的数值稳定性问题 ,本工作在EICE算法 (extendedimplicitcontinuous fluideulerianmethod)基础上发展了数值仿真算法AEICE ,对可能存在的两相自然循环系统的动态稳定性进行了分析。分析结果表明 :增大系统压力和增加入口欠热度均将增大两相自然循环系统的稳定区域。经比较 ,计算结果与实验数据符合较好
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| 关 键 词： | 流动稳定性 两相自然循环 数值仿真 |
| 文章编号： | 1000-6931(2002)01-0062-05 |
| 修稿时间： | 2000-11-06 |
Numerical Analysis of Dynamic Instability of Boiling Two-phase Natural Circulation System |
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| YAO Wei,KUANG Bo,YANG Yan hua,XU Ji jun. Numerical Analysis of Dynamic Instability of Boiling Two-phase Natural Circulation System[J]. Atomic Energy Science and Technology, 2002, 36(1): 62-66 |
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| Authors: | YAO Wei KUANG Bo YANG Yan hua XU Ji jun |
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| Abstract: | To avoid the numerical instability problems at the discontinuous points at ONB (onset of boiling) and dry out, the AEICE numerical algorithm, which is based on the EICE(extended implicit continuous fluid eulerian method), is developed. Furthermore, the AEICE is used to analyze the thermo hydrodynamic instabilities of boiling two phase natural circulation system, which may exist in the advanced nuclear reactors. It shows that increa sing system pressure or inlet subcooling can enlarge the system stability region. The numerical results correspond well with the experimental data. |
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| Keywords: | flow instability natural circulation numerical simulation |
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