| 瞬间射流作用下的混压式进气道起动特性研究 |
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| 引用本文： | 游进,夏智勋,方传波,胡建新,刘冰.瞬间射流作用下的混压式进气道起动特性研究[J].航空学报,2011,32(9):1590-1598. |
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| 作者姓名： | 游进 夏智勋 方传波 胡建新 刘冰 |
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| 作者单位： | 国防科学技术大学航天与材料工程学院,湖南长沙,410073 |
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| 基金项目： | 武器装备预研基金(9140A28030309KG01)~~ |
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| 摘 要： | 针对冲压发动机转级过程中可能出现的混压式进气道不起动现象,提出了一种新的瞬间射流调节方式,并开展了非定常数值模拟.结果表明,利用储气腔内高压气体的瞬间喷射,可以实现进气道不起动流场的再起动,且气体质量最少需要0.011 kg,射流作用时间最多持续27ms,具有较高的工程应用价值.深入研究发现,射流引起的进气道溢流是实现...
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| 关 键 词： | 冲压发动机 混压式进气道 转级过程 起动特性 瞬间射流 非定常数值模拟 |
| 收稿时间： | 2011-03-10; |
Study of Starting Characteristics for Mixed-compression Inlet with Instantaneous Injection |
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| YOU Jin,XIA Zhixun,FANG Chuanbo,HU Jianxin,LIU Bing.Study of Starting Characteristics for Mixed-compression Inlet with Instantaneous Injection[J].Acta Aeronautica et Astronautica Sinica,2011,32(9):1590-1598. |
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| Authors: | YOU Jin XIA Zhixun FANG Chuanbo HU Jianxin LIU Bing |
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| Institution: | YOU Jin,XIA Zhixun*,FANG Chuanbo,HU Jianxin,LIU BingCollege of Aerospace and Material Engineering,National University of Defense Technology,Changsha 410073,China |
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| Abstract: | A new instantaneous injection technique aimed at the restart of mixed-compression inlet during the transition of ramjet is researched using the unsteady numerical simulation method.The results show that with the instantaneous injection of the 0.011 kg high pressure gas on ramp,the unstart flow of inlet will restart after about 27 ms,because of the increased mass spillage of inlet by blockage of injection.The influence of mass flux curves of the injection on restart performance is researched,which shows that... |
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| Keywords: | ramjet mixed-compression inlet transition starting characteristics instantaneous injection unsteady numerical simulation |
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