气动阀式脉冲爆震发动机部分充填机理研究

李建中; 王家骅; 范育新; 张义宁; 张靖周

气动阀式脉冲爆震发动机部分充填机理研究

南京航空航天大学能源与动力学院, 北京 210016

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出版历程
- 收稿日期: 2004-11-02
- 修回日期: 2005-03-21
- 刊出日期: 2006-02-28

Investigation on Pneumatic-Valve Pulse Detonation Engine with Partial Detonable Mixture Filling

1.College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

摘要

摘要: 研究了不同部分充填比例对煤油/空气气动阀式脉冲爆震发动机(PDE)的爆震波压力特性影响,初步分析了部分充填的爆震管内一系列波相互作用的机理。研究结果表明,在气动阀选定、爆震管长度和爆震管内部结构一定条件下,随着脉冲爆震发动机可爆混气充填爆震管比例的降低,虽然爆震波压力峰值略有下降,但是,单位体积可爆混气获得的冲量线性增加,提高了脉冲爆震发动机的工作性能。研究结果对于煤油/空气气动阀式脉冲爆震发动机的总体优化设计,提高PDE的工作性能具有重要的参考价值。
- 航空、航天推进系统 /
- 脉冲爆震发动机 /
- 爆震燃烧 /
- 气动阀 /
- 部分充填
Abstract: Effects of partial detonable mixture filling proportion on detonation wave pressure properties of kerosene/air pneumatic-valve pulse detonation engine were investigated.A preliminary analysis of a series of wave's reciprocity was carried out.Experimental results show that with given double swirl and direct pneumaticvalve and detonation tube structure,the decrease of partial detonable mixture filling proportion causes a little decrease of the peak value of detonation waves' pressure,but impulse per unit volume of detonable mixture increases linearly.This investigation is important to the design optimization of the kerosene/air pneumatic-valve PDE,and to improve the performance of PDE.
- aerospace propulsion system /
- pulse detonation engine /
- detonative combustion /
- pneumatic-valve /
- partial filling

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参考文献(9)

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