| 引用本文: | 郑殿峰,杨义勇,王家骅.气动阀式脉冲爆震发动机推力因数[J].哈尔滨工业大学学报,2011,43(1):130.DOI:10.11918/j.issn.0367-6234.2011.01.026 |
| ZHENG Dian-feng,YANG Yi-yong,WANG Jia-hua.Influence coefficient of thrust for aero-valve pulse detonation engine[J].Journal of Harbin Institute of Technology,2011,43(1):130.DOI:10.11918/j.issn.0367-6234.2011.01.026 |
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| 摘要: |
| 为了进一步研究脉冲爆震发动机(PDE)的有效推力,对影响有效推力的因数进行了研究.采用旋流式气动阀,在爆震管直径60mm内成功实现了吸气式汽油/空气PDE的连续爆震燃烧.冷态状态下研究了PDE阻力和爆震管填充速度与冲压来流速度的关系,热态状态下研究了气动阀推力壁压力.对一个工作周期正反向推力和阻力的计算结果表明,PDE在频率10Hz时就能产生连续有效推力,但实际很难测得冲压进气时的有效推力.对PDE获得连续有效推力因数的复杂技术系统进行研究,结果表明,PDE的工作频率、爆震强度、内外阻力是获得有效推力的决定因素,其中扰流器阻力是关键. |
| 关键词: 脉冲爆震发动机 气动阀 爆震波 有效推力 |
| DOI：10.11918/j.issn.0367-6234.2011.01.026 |
| 分类号:V235.22 |
| 基金项目:国防基础预研项目(K1600060704) |
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| Influence coefficient of thrust for aero-valve pulse detonation engine |
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ZHENG Dian-feng1, YANG Yi-yong2, WANG Jia-hua3
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1.Department of Energy and Resources Engineering,Beijing University,100871 Beijing,China;2.School of Engineering and Technology,China University of Geosciences( Beijing) ,100083 Beijing,China;3.College of Energy and Power Engineering,Nanjing University of Aeronautics & Astronautics,210016 Nanjing,China)
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| Abstract: |
| A study about the influence factors on effective thrust of pulse detonation engine ( PDE) is carried out to obtain effective thrust. The continuous detonation combustion of air-breathing/gasoline-air PDE is achieved by using the cyclone-type aero-valves in a detonation tube with diameter of 60 mm. The effects of the filling speed of detonation tube and the stamping flow speed on the drag of PDE are analyzed based on the cold-state experiments,while the pressure p3 of the aero-valve is studied in the thermal-state experiments. The results of calculation for the thrust and drag in a period show that PDE can output effective thrust at the frequency of 10 Hz,but this effective thrust is difficult to be measured under actual working conditions. The research on the continuous effective thrust for PDE indicates that the operating frequency,detonation intensity, internal and external drag are the decision factors,while reducing the spoiler drag is the key to obtain the effective thrust. |
| Key words: pulse detonation engine aero-valve detonation wave effective thrust |
