| Busemann进气道起动问题初步研究 |
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| 引用本文： | 孙波,张堃元.Busemann进气道起动问题初步研究[J].推进技术,2006,27(2):128-131. |
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| 作者姓名： | 孙波 张堃元 |
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| 作者单位： | 南京航空航天大学,能源与动力学院,江苏,南京,210016 |
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| 摘 要： | 1引言在高超声速进气道的设计过程中,除了要求进气道在设计状态具有良好的性能之外,另一个必须考虑的重要问题是保证进气道在冲压发动机开始工作的飞行马赫数下能够顺利起动,它是发动机正常工作的前提,因此起动问题在进气道的设计中处于非常重要的地位。文献1]指出,流线跟踪Bu
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| 关 键 词： | 超音速冲压喷机发动机 Busemann进气道 起动 数值仿真 |
| 文章编号： | 1001-4055（2006）02-0128-04 |
| 收稿时间： | 2005-04-11 |
| 修稿时间： | 2005-10-20 |
Preliminary investigation on Busemann inlet starting characteristics |
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| SUN Bo and ZHANG Kun-yuan.Preliminary investigation on Busemann inlet starting characteristics[J].Journal of Propulsion Technology,2006,27(2):128-131. |
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| Authors: | SUN Bo and ZHANG Kun-yuan |
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| Institution: | Coll.of Energy and Power,Nanjing Univ.of Aeronautics and Astronautics,Nanjing 210016,China;Coll.of Energy and Power,Nanjing Univ.of Aeronautics and Astronautics,Nanjing 210016,China |
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| Abstract: | Inviscid flow lations were performed to study the starting characteristics of square streamtraced inlets at Ma=4 and they are designed for Mach 7 flight and has a same contraction ratio of 6.The results show that streamtraced inlet has a better starting performance than full Busemann inlet,but this inlet is not self-starting yet.In order to realize that 3° truncated streamtraced inlet can be started at take-over Mach number,cut-back of the cowl allow more flow spillage and a reduced internal contraction ratio,it is observed that its maximum reference internal contraction ratio which can be started is between 1.255 and 1.27.With the inlet self-starting at Ma=4,it has still high efficiency at design point. |
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| Keywords: | Supersonic combustion ramjet engine Busemann inlet~+ Starting Numerical simulation |
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