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| 气动阀型式对脉冲爆震发动机爆震特性的影响 | |
| 引用本文： | 郑殿峰,张会强,王家骅.气动阀型式对脉冲爆震发动机爆震特性的影响[J].南京航空航天大学学报,2009,41(2). |
| 作者姓名： | 郑殿峰 张会强 王家骅 |
| 作者单位： | 1. 北京大学工学院,北京,100871 2. 清华大学航天航空学院,北京,100084 3. 南京航空航天大学能源与动力学院,南京,210016 |
| 摘 要： | 通过改变气动阀结构、堵塞比及进气阻力系数,研究了其对脉冲爆震发动机(PDE)爆震波压力特性的影响.为了改善燃油雾化、蒸发和掺混,低充填速度PDE宜采用双旋流式气动阀.同一类型气动阀堵塞比大,爆震效果好,但会使PDE充填速度和工作频率降低,其最佳堵塞比为60%～70%.不同型式气动阀爆震燃烧效果除和堵塞比有关外,还和正反向流动阻力系数有关,阻力系数越大,爆震燃烧效果越好.结果表明,结构简单的气动阀具有单向阀和气动雾化喷嘴的功能,能够用于PDE. |
| 关 键 词： | 脉冲爆震发动机 气动阀 爆震波 堵塞比 |
Effects of Aerovalve Structure on Performance of PDE |
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| Zheng Dianfeng,Zhang Huiqiang,Wang Jiahua.Effects of Aerovalve Structure on Performance of PDE[J].Journal of Nanjing University of Aeronautics & Astronautics,2009,41(2). | |
| Authors: | Zheng Dianfeng Zhang Huiqiang Wang Jiahua |
| Institution: | 1.College of Engineering;Peking University;Beijing;100871;China;2.College of Aerospace;Tsinghua University;100084;3.College of Energy and Power Engineering;Nanjing University of Aeronautics & Astronautics;Nanjing;210016;China |
| Abstract: | The performances of detonation waves in pulse detonation engine(PDE) are investigated under different structures,blockage ratios and drag coefficients of aerovalves.To improve the process of fuel automization,vaporization and mixing with air,the bi-swirl aerovalve is preferred to PDE under the condition of low mixture charging velocity.For the same type of aerovalves,by increasing the blockage ratio, the detonation waves become stronger,while the mixture charging velocity and working frequency are reduced,t... |
| Keywords: | pulse detonation engine aerovalve detonation wave blockage ratio |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |