| 低密度流体冲刷下螺旋管束的振动行为 |
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| 引用本文： | 薄涵亮.低密度流体冲刷下螺旋管束的振动行为[J].清华大学学报(自然科学版),1997(5). |
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| 作者姓名： | 薄涵亮 |
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| 作者单位： | 清华大学核能技术设计研究院 |
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| 基金项目： | 国家“八六三”高技术项目 |
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| 摘 要： | 在西安交通大学风洞台架上，针对２００ＭＷ高温气冷堆蒸汽发生器设计参数所建立的实验模型，研究了蒸汽发生器中螺旋管管束在横向低密度流体冲刷下的振动行为。针对发生流体弹性不稳定现象时的临界流速；不同螺旋半径上相邻管的相互影响；同一螺旋半径上、下游管的相互影响等问题作了讨论。获得的结果对高温气冷堆氦气蒸汽发生器的设计提供了依据，同时亦为螺旋管束的诱发振动理论计算和理论模型的建立提供实验依据。
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| 关 键 词： | 螺旋管 流体弹性不稳定 蒸汽发生器 热交换器 |
Helical tube bundles vibration induced by low density flow |
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| Bo Hanliang Institute of Nuclear Energy Technology,Tsinghua University,Beijing.Helical tube bundles vibration induced by low density flow[J].Journal of Tsinghua University(Science and Technology),1997(5). |
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| Authors: | Bo Hanliang Institute of Nuclear Energy Technology Tsinghua University Beijing |
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| Institution: | Bo Hanliang Institute of Nuclear Energy Technology,Tsinghua University,Beijing 100084 |
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| Abstract: | At the air duct of Xi'an Jiaotong University, which was established on the design parameters of steam generator for the 200 MW high temperature gas cooled reactor (HTR), the experimental study on the behavior of helical tube bundles vibration in steam generator, which was induced by low density cross flow, has been done. The problem such as the critical flow velocity at which fluid elastic instability phenomenon begin to occur, the reciprocal action on neighboring tubes in different helical radius, and that in the same helical radius etc., has been discussed in detail. The results provide bases for designing helium steam generator for HTR, and bases to advance theoretical study on flow induced helical tube bundles vibration too. |
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| Keywords: | helical tube fluid elastic instability steam generator heat exchanger |
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