| 一种两侧布局的亚声速无人机进气道流场特性 |
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| 引用本文： | 蒋武根,彭云晖,李博. 一种两侧布局的亚声速无人机进气道流场特性[J]. 航空动力学报, 2011, 26(11): 2549-2555 |
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| 作者姓名： | 蒋武根 彭云晖 李博 |
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| 作者单位： | 1. 中国人民解放军总参谋部第六十研究所,南京,210016
2. 南京航空航天大学能源与动力学院,南京,210016 |
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| 摘 要： | 对一种两侧布局的亚声速无人机进气道进行了气动设计和数值模拟研究,得到了该进气道的工作特性.结果表明,进气道唇口、两侧管道的汇合段、以及发动机轮毂对进气道流场和性能影响较大,发动机轮毂能改善进气道出口流场品质,降低流场畸变.在所有状态下,该进气道的总压恢复系数大于0.97,畸变指数小于0.15,满足发动机的工作要求.
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| 关 键 词： | 亚声速进气道 无人机 数值模拟 总压恢复系数 畸变指数 |
| 收稿时间： | 2011-07-21 |
| 修稿时间： | 2011-09-14 |
Flow field characteristics of a side-mounted subsonic inlet of unmanned aerial vehicle |
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| JIANG Wu-gen,PENG Yun-hui and LI Bo. Flow field characteristics of a side-mounted subsonic inlet of unmanned aerial vehicle[J]. Journal of Aerospace Power, 2011, 26(11): 2549-2555 |
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| Authors: | JIANG Wu-gen PENG Yun-hui LI Bo |
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| Affiliation: | JIANG Wu-gen1,PENG Yun-hui1,LI Bo2 (1.The 60th Research Institute of General Staff Department,The Chinese People's Liberation Army,Nanjing 210016,China,2.College of Energy and Power Engineering,Nanjing University of Aeronautics and Astronautics,China) |
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| Abstract: | A side-mounted subsonic inlet of unmanned aerial vehicle (UAV) was designed and the flow field was simulated.The characteristics of the inlet were obtained.The results show that, the inlet lip,the junction of the duct and the engine hub have great influence on the flow filed and characteristics of the inlet.The engine hub can improve the quality of the flow field at the exit of the inlet and reduce the distortion index.The total pressure recovery coefficient of the inlet is more than 0.97 and the distortion index is less than 0.15.The inlet meets the requirements of the engine at all states. |
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| Keywords: | subsonic inlet unmanned aerial vehicle(UAV) numerical simulation |
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