| 压水堆核电厂稳压器波动管热分层现象数值分析 |
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| 引用本文： | 张力,赖建永,黄伟,李海颖.压水堆核电厂稳压器波动管热分层现象数值分析[J].核动力工程,2009,30(4). |
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| 作者姓名： | 张力 赖建永 黄伟 李海颖 |
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| 作者单位： | 1. 重庆大学机械传动国家级重点实验室,400030
2. 中国核动力研究设计院核反应堆系统设计技术国家级重点实验室,成都,610041 |
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| 摘 要： | 为分析评价压水堆核电厂稳压器波动管热分层现象对波动管结构完整性的影响,采用计算流体力学(CFD)分析方法,对稳压器波动管热分层现象进行了数值模拟.研究了波动管内的流体流动,得到了稳压器波动管的传热特性、流体流场和温度分布,分析了稳压器波动管波动热分层现象与波动流速之间的关系.研究结果表明:波动流速在一定范围内变化时,管道最大截面温差随着波动流速的增大而增大.并且得到了不同波动流速下管道最大截面温差及其出现的位置,指出了热分层现象发生时波动管的薄弱环节.
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| 关 键 词： | 波动管 热分层 计算流体力学 |
Numerical Simulation for Thermal Stratification of PWR NPP Pressurizer Surge Line |
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| ZHANG Li,LAI Jian-yong,HUANG Wei,LI Hai-ying.Numerical Simulation for Thermal Stratification of PWR NPP Pressurizer Surge Line[J].Nuclear Power Engineering,2009,30(4). |
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| Authors: | ZHANG Li LAI Jian-yong HUANG Wei LI Hai-ying |
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| Affiliation: | 1.State Key Laboratory of Mechanical Transmission;Chongqing University;4300030;China;2. National Key Laboratory of Reactor System Design Technology;Nuclear Power Institute of China;Chengdu;610041;China |
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| Abstract: | In order to evaluate the structural integrity of pressurizer surge line affected by thermal stratification, this paper presents the numerical simulation for thermal stratification of PWR NPP pressurizer surge line by using Computational Fliud Dynamics(CFD) method. The flow in the surge line is studied, and the heat transfer characteristics, flow field and temperature distribution are obtained and the relationship between the phenomenon of thermal stratification and the surge velocity is analyzed. The result... |
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| Keywords: | Surge line Thermal stratification Computational fluid dynamics |
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