| 单相流体横向作用下传热管束间耦合振动数值模拟研究 |
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| 引用本文： | 包士毅,朱海,唐迪,袁巍,黄喜鹏. 单相流体横向作用下传热管束间耦合振动数值模拟研究[J]. 核动力工程, 2020, 41(6): 111-115. DOI: 10.13832/j.jnpe.2020.06.0111 |
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| 作者姓名： | 包士毅 朱海 唐迪 袁巍 黄喜鹏 |
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| 作者单位： | 浙江工业大学化工机械设计研究所,杭州,310032;过程装备及其再制造教育部工程研究中心,杭州,310032,浙江工业大学化工机械设计研究所,杭州,310032;过程装备及其再制造教育部工程研究中心,杭州,310032,浙江工业大学化工机械设计研究所,杭州,310032;过程装备及其再制造教育部工程研究中心,杭州,310032,浙江工业大学化工机械设计研究所,杭州,310032;过程装备及其再制造教育部工程研究中心,杭州,310032,浙江工业大学化工机械设计研究所,杭州,310032;过程装备及其再制造教育部工程研究中心,杭州,310032 |
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| 基金项目： | 浙江省公益技术研究计划项目;国家自然科学基金 |
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| 摘 要： | 换热管束作为蒸汽发生器的重要组成部分,其可靠程度直接影响到核电厂反应堆的安全运行。借鉴相关领域的研究提出并发展了一种具有较高精度的计算流体动力学(CFD)/计算结构动力学(CSD)耦合计算方法,对相邻管束间耦合振动现象开展了数值模拟研究。在时域和频域内分析了管阵的涡结构及相邻管束间振动响应规律。研究结果表明:漩涡在管束的上游产生、脱落并向下游逐渐发展,管束间大量的脱落涡的相互作用极大地丰富了流场中的涡脱频率;管束振动受管束固有频率和涡脱频率的共同影响;周围相邻管束的振动会对管束流体力波动及频率主导性产生显著影响,在一定程度上削弱升力波动;当相邻振动管束在同一排时,对管束的振动位移影响较为显著。
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| 关 键 词： | CFD/CSD耦合 换热管 横向流 流致振动 动态响应 |
Numerical Simulation Research on Coupling Vibration of Heat Transfer Tube Bundles under Lateral Action of Single-Phase Fluid |
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| Bao Shiyi,Zhu Hai,Tang Di,Yuan Wei,Huang Xipeng. Numerical Simulation Research on Coupling Vibration of Heat Transfer Tube Bundles under Lateral Action of Single-Phase Fluid[J]. Nuclear Power Engineering, 2020, 41(6): 111-115. DOI: 10.13832/j.jnpe.2020.06.0111 |
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| Authors: | Bao Shiyi Zhu Hai Tang Di Yuan Wei Huang Xipeng |
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| Abstract: | The heat exchange tube bundle is an important part of the steam generator, and its reliability directly affects the safe operation of the nuclear power plant reactor. Based on the research in related fields, a computational fluid dynamics(CFD)/computational structural dynamics(CSD) coupling calculation method with higher accuracy is proposed and developed, and the numerical simulation research is carried out on the coupling vibration phenomenon between adjacent tube bundles. The vortex structure of the tube array and the vibration response law between adjacent tube bundles are analyzed in the time domain and frequency domain. The research results show that the vortex is generated and shed in the upstream of the tube bundle, and then gradually develops downstream. The interaction of a large number of shedding vortices between the tube bundles greatly enriches the vortex frequency in the flow field, and the vibration of the tube bundle is affected by the natural frequency and the vortex frequency of the tube bundle. The vibration of the surrounding adjacent tube bundles will have a significant impact on the fluid force fluctuation and frequency dominance of the tube bundle, and weaken the lift fluctuation to a certain extent, and when the adjacent vibrating tube bundles are in the same row, the impact on the vibration displacement of the tube bundle is more significant. |
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