| 多喷嘴超声速引射器压力匹配性能试验研究 |
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| 引用本文： | 吴继平,陈健,王振国.多喷嘴超声速引射器压力匹配性能试验研究[J].国防科技大学学报,2007,29(5):5-9. |
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| 作者姓名： | 吴继平 陈健 王振国 |
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| 作者单位： | 国防科技大学,航天与材料工程学院,湖南,长沙,410073 |
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| 基金项目： | 国家863计划资助项目(2005AA992020) |
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| 摘 要： | 建立了多喷嘴超声速引射器试验台,采用燃气作为一、二次流驱动工质对多喷嘴超声速引射器进行了试验研究,重点考察了引射器的压力匹配问题。试验结果表明:一次流总压越低,引射喷嘴出口压力越低,与二次流压力匹配越容易;二次流总压越低,保持压力匹配对引射器的要求越高;二次流总温对压力匹配基本无影响。
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| 关 键 词： | 超声速引射器 超声速扩压器 压力匹配 高空模拟试车台 |
| 文章编号： | 1001-2486(2007)05-0005-05 |
| 收稿时间： | 2006/12/8 0:00:00 |
| 修稿时间： | 2006年12月8日 |
Experimental Investigation on Pressure Matching of Multi-nozzle Supersonic Ejector |
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| WU Jiping,CHEN Jian and WANG Zhenguo.Experimental Investigation on Pressure Matching of Multi-nozzle Supersonic Ejector[J].Journal of National University of Defense Technology,2007,29(5):5-9. |
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| Authors: | WU Jiping CHEN Jian and WANG Zhenguo |
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| Institution: | College of Aerospace and Materials Engineering, National Univ. of Defense Technology, Changsha 410073, China;College of Aerospace and Materials Engineering, National Univ. of Defense Technology, Changsha 410073, China;College of Aerospace and Materials Engineering, National Univ. of Defense Technology, Changsha 410073, China |
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| Abstract: | An ejector test facility was established to investigate the multi-nozzle supersonic ejector performance,and hot rocket exhaust gases were used as primary and secondary driving fluids.Emphases were placed on pressure matching between primary and secondary flows.The investigation indicates that the higher the total pressure of primary flow is and the lower the static pressure of on primary nozzle exit is,the more convenient it is for the performance to match with the secondary flow,and that the lower the secondary flow total pressure is,the more the critical ejector performance is required to maintain pressure matching,and that the secondary flow total temperature has little influence on pressure matching. |
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| Keywords: | supersonic ejector supersonic diffuser pressure matching high altitude test facility |
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