| 环形脉冲爆震发动机引射性能 |
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| 引用本文： | 秦亚欣,于军力,高歌. 环形脉冲爆震发动机引射性能[J]. 航空动力学报, 2011, 26(1): 35-41 |
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| 作者姓名： | 秦亚欣 于军力 高歌 |
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| 作者单位： | 北京航空航天大学,能源与动力工程学院航空发动机气动热力科技重点实验室,北京,100191 |
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| 摘 要： | 采用解析方法得出爆震波在爆震管内的参数分布,应用数值方法对爆震波衰退为激波后的传播、排除过程进行了多循环模拟.通过对环形爆震管非稳态引射过程的分析,得出非稳态引射过程可以分成四个阶段,环形爆震管比传统的圆形爆震管的引射作用更强.不同结构参数的引射喷管对环形爆震管的引射增推性能不同,经过分析,得到了较佳的引射喷管的入口尺...
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| 关 键 词： | 脉冲爆震发动机 爆震波 环形 引射 数值计算 |
| 收稿时间： | 2009-11-23 |
| 修稿时间： | 2010-05-13 |
Performance studies of annular pulse detonation engine ejectors |
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| QIN Ya-xin,YU Jun-li and GAO Ge. Performance studies of annular pulse detonation engine ejectors[J]. Journal of Aerospace Power, 2011, 26(1): 35-41 |
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| Authors: | QIN Ya-xin YU Jun-li GAO Ge |
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| Affiliation: | QIN Ya-xin,YU Jun-li,GAO Ge(National Key Laboratory of Science and Technology on Aero-Engines,School of Jet Propulsion,Beijing University of Aeronautics and Astronautics,Beijing 100191,China) |
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| Abstract: | The distributions of detonation parameters in detonation chamber were gained by analytical numeration,and then multiple-cycle numerical simulations were carried out after detonation wave broke up to shock wave.The analysis on the mechanism of unsteady ejection shows that the process of unsteady ejection can be divided to four stages,and the ejection performance of annular pulse detonation duct is stronger than round pulse detonation duct.Different structures and parameters could induce different time-averag... |
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| Keywords: | pulse detonation engine detonation wave annular ejection numerical simulation |
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