| 应用LDV对压水反应堆棒束间流场的研究 |
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| 引用本文： | 宋传琳,孙厚钧.应用LDV对压水反应堆棒束间流场的研究[J].实验流体力学,1991(4). |
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| 作者姓名： | 宋传琳 孙厚钧 |
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| 作者单位： | 清华大学
(宋传琳)，北京建工学院(孙厚钧) |
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| 摘 要： | 在50年代,对于反应堆棒束周围的速度分布与湍流强度分布就有人进行过试验研究,但几乎所有的人都是借助于传统的探头,其探头对流场往往会造成剧烈的扰动。本文介绍了用作者研制成的具有高分辨率的偏振差动式激光测速仪(简称 PLDV)测量压水热核反应堆中棒束间的平均速度场分布、湍流强度、自相关函数和功率谱的试验研究,初步结果表明,在平行于棒束轴向棒束间流动参数,其测量结果是准确、合理的,测量系统可靠,其试验方法也是正确的。
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| 关 键 词： | 激光测速仪 棒束 信噪比 偏振差动 湍流强度 |
LDV STUDY ON FLOW FIELD BETWEEN BUNDLES OF PRESSED WATER REACTOR |
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| Sung Chuanlin.LDV STUDY ON FLOW FIELD BETWEEN BUNDLES OF PRESSED WATER REACTOR[J].Experiments and Measur in Fluid Mechanics,1991(4). |
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| Authors: | Sung Chuanlin |
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| Institution: | Sung Chuanlin(Tsinghua University)Sun Houjun(Beijing Institute of Civil Engineering and Architecture) |
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| Abstract: | Experiments have been made to investigate the velocitydistribution and turbulence intensity surrounding rod bundle.But,nearly all severe troubles were encountered in measuring velocity bytraditional probes in the fifties.In the present paper,the mean velocitydistribution,turbulence intensity,autocorrelation function and powerspectrum in bundle flow field with water flow parallel to the axis ofbundle are measured by a polarizing laser velocimeter with high resolu-tion and noise-concelling character,which is prepered by the authors.The preliminary results of the experiment have shown fair reasonable-ness.The measuring systems may be considered as reliable and themethod of test is very correct too. |
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| Keywords: | laser doppler veloeimeter bundles signal to noise ratio polarized differential turbubence intensity |
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