| 红外成像在羽流撞击平板热效应试验中的应用 |
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| 引用本文： | 李明,廖俊必,祝智伟,李中华.红外成像在羽流撞击平板热效应试验中的应用[J].红外与激光工程,2010,39(5). |
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| 作者姓名： | 李明 廖俊必 祝智伟 李中华 |
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| 作者单位： | 四川大学测量控制系;中国空气动力研究与发展中心超高速空气动力研究所; |
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| 摘 要： | 为了研究发动机羽流撞击平板的热效应,通过在风洞内建立羽流流场,利用红外热像仪测量平板模型的表面温度,进而获得不同推力产生的羽流撞击平板的热流率分布.首先回顾了高空羽流污染及其效应研究所开展的工作,接着介绍了试验研究所使用的高超声速低密度风洞、红外热像仪等主要仪器设备的性能参数以及平板模型的外形特征,其次给出了2 N与10 N推力的试验条件、热流处理方法、试验结果及其讨论.最后研究了推力喷管轴线与平板距离变化对羽流撞击平板的热效应影响.结果表明:发动机喷管轴线与平板的距离不同,羽流撞击产生的高热流率区域的位置与大小也不相同,距离越小,高热流区域越靠近平板前缘,产生的热效应也越强.
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| 关 键 词： | 羽流撞击 红外成像 热效应 风洞试验 |
Application of infrared imaging in the thermal effect test of the plate model impinged by plume flow |
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| LI Ming,LIAO Jun-bi,ZHU Zhi-wei,LI Zhong-hua.Application of infrared imaging in the thermal effect test of the plate model impinged by plume flow[J].Infrared and Laser Engineering,2010,39(5). |
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| Authors: | LI Ming LIAO Jun-bi ZHU Zhi-wei LI Zhong-hua |
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| Affiliation: | LI Ming1,2,LIAO Jun-bi1,ZHU Zhi-wei2,LI Zhong-hua2(1.Department of Measurement and Control,Sichuan University,Chengdu 610065,China,2.Hypersonic Aerodynamic Institute,China Aerodynamics Research & Development Center,Mianyang 621000,China) |
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| Abstract: | In order to study thermal effect on the plate model impinged by plume flow of engine,the plume flow field was established inside the test section of the wind tunnel.Surface temperature of the plate model was measured with infrared camera,then the distributions of heat transfer rate on the plate model were deduced in different thrust conditions.The study on plume contamination and its all kinds of effects at high altitude were reviewed in this paper firstly.The function parameters of the hypersonic low densi... |
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| Keywords: | Plume impingement Infrared imaging Heating effect Wind tunnel test |
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