| 引用本文: | 邹建军,周进,徐万武,等.超音速环形引射器空气引射启动特性试验.[J].国防科技大学学报,2008,30(1):1-4.[点击复制] |
| ZOU Jianjun,ZHOU Jin,XU Wanwu,et al.Experimental Investigation on the Start Performances of the Supersonic Annular Air Ejector[J].Journal of National University of Defense Technology,2008,30(1):1-4[点击复制] |
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| 超音速环形引射器空气引射启动特性试验 |
| 邹建军, 周进, 徐万武, 王振国 |
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(国防科技大学 航天与材料工程学院，湖南 长沙 410073)
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| 摘要: |
| 建立了超音速环形引射系统，对环形引射器空气引射启动特性进行了试验研究。试验结果表明：管道马赫数越大，则系统启动压强越高，同时盲腔真空度越高；混合室收缩比越小，系统启动压强越低；若管道马赫数较大，而第二喉部长径比和亚音速扩压段面积比过小，引射器启动过程可能不稳定，甚至无法启动；混合室收缩比、环型引射器扩压管道参数对盲腔压强无影响。 |
| 关键词: 超音速引射器 环形引射器 启动特性 |
| DOI： |
| 投稿日期：2007-06-15 |
| 基金项目:国家“863”计划资助项目(2005AA992020) |
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| Experimental Investigation on the Start Performances of the Supersonic Annular Air Ejector |
| ZOU Jianjun, ZHOU Jin, XU Wanwu, WANG Zhenguo |
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(College of Aerospace and Materials Engineering, National Univ. of Defense Technology, Changsha 410073, China)
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| Abstract: |
| The air ejector test facility was established to investigate the start performance of supersonic annular ejector. The investigation indicates that the higher the mach number in pipe, the higher start pressure and vacuum in cavity, and that the mixing room contraction ratio and the pipe configuration of the system deeply influence the start performance, but they have little influence on the vacuum in cavity. |
| Keywords: supersonic ejector annular ejector the start performance |
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