| 环隙窄缝通道管间脉动不稳定性分析 |
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| 引用本文： | 夏庚磊,董化平,彭敏俊,郭赟.环隙窄缝通道管间脉动不稳定性分析[J].原子能科学技术,2011,45(9):1034-1039. |
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| 作者姓名： | 夏庚磊 董化平 彭敏俊 郭赟 |
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| 作者单位： | 1.哈尔滨工程大学 ;核安全与仿真技术国防重点学科实验室，黑龙江 ;哈尔滨150001;2.中国核动力研究设计院 ;核反应堆系统设计重点实验室，四川 ;成都610041 |
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| 摘 要： | 针对套管式直流蒸汽发生器传热管环隙窄缝通道的流动，利用RELAP5/MOD3.4程序进行计算分析，讨论了节点数目和并行通道根数对流动不稳定起始点的影响。结果表明：在利用程序进行计算前需对所分析问题的节点数目进行优化选取。根据优化结果，分析了套管式直流蒸汽发生器平行通道的流动不稳定性，得出了进出口节流、进口欠热度、系统压力、进出口段长度、不均匀节流、不均匀加热等因素对环隙窄缝多通道流动不稳定性的影响。
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| 关 键 词： | 并行通道 流动不稳定性 直流蒸汽发生器 RELAP5 |
Analysis of Instability in Narrow Annular Multi-channel System |
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| XIA Geng-lei,DONG Hua-ping,PENG Min-jun,GUO Yun.Analysis of Instability in Narrow Annular Multi-channel System[J].Atomic Energy Science and Technology,2011,45(9):1034-1039. |
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| Authors: | XIA Geng-lei DONG Hua-ping PENG Min-jun GUO Yun |
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| Affiliation: | 1.National Defense Key Subject Laboratory for Nuclear Safety and Simulation Technology, Harbin Engineering University, Harbin 150001, China;2.Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu 610041, China |
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| Abstract: | The flow instability in narrow annular multi-channel system was studied using RELAP5/MOD3.4 code.The sensitivity of the number of nodes and the number of channels was studied firstly with the aim to confirm the influence.The results show that the calculated results are sensitive to the number of control volumes,so before applying the RELAP5 code to the parallel channel systems,the number of nodes must be assessed.Based on optimal parameters,influences of inlet throttling,system pressure,inlet subcooling deg... |
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| Keywords: | parallel channel flow instability once-through steam generator RELAP5 |
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