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论文:2013,Vol:31,Issue(1):55-59 |
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引用本文： |
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黄希桥, 李洋, 陈乐, 穆扬, 郑龙席. 脉冲爆震发动机引射器增推性能的实验研究[J]. 西北工业大学 |
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Huang Xiqiao, Li Yang, Chen Le, Mu Yang, Zheng Longxi. Experimental Study on Thrust Augmentation of Ejector Driven by Pulse Detonation Engine[J]. Northwestern polytechnical university |
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| 脉冲爆震发动机引射器增推性能的实验研究 |
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| 黄希桥, 李洋, 陈乐, 穆扬, 郑龙席 |
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| 西北工业大学 动力与能源学院, 陕西 西安 710072 |
| 摘要: |
| 为了研究脉冲爆震燃烧这种耦合有复杂激波结构的非稳态脉动气流的引射增推性能,采用汽油为燃料、空气为氧化剂,对基于爆震燃烧的脉冲爆震发动机在加引射器前后的推力进行了实验测试。实验采用在技术比较成熟的内径60 mm脉冲爆震火箭发动机上安装内径120 mm的引射器,分别测试了15 Hz、20 Hz、25 Hz、30 Hz 4种不同频率下,引射器与发动机11种不同相对轴向位置处的推力增益。实验发现脉冲爆震发动机引射器能很好地提高发动机推力,当引射器入口位于发动机出口上游位置比处于其下游时推力增益较好,最大推力增益可达158%;并且发动机高频比低频产生的推力增益大。 |
| 关键词:
引射器
实验
脉冲爆震发动机
激波
轴向位置
爆震频率
推力增益
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| Experimental Study on Thrust Augmentation of Ejector Driven by Pulse Detonation Engine |
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| Huang Xiqiao, Li Yang, Chen Le, Mu Yang, Zheng Longxi |
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| Department of Aero-Engines,Northwestern Polytechnical University,Xi'an 710072,China |
| Abstract: |
| We performed experimental studies of the ejector driven by a pulse detonation rocket engine using gaso-line as fuel and air as oxidant in order to investigate the thrust augmentation performance of unsteady pulsejet cou-pling with complex shock wave and detonation combustion wave.The inner diameters of the detonation engine andthe ejector with a convergent inlet were 60mm and 120mm respectively.The thrust augmentation was measured at e-leven different positions at four operating frequencies of 15Hz, 20Hz, 25z and 30Hz.The experimental results indi-cated that the ejector was very effective in increasing the thrust of the system.The engine-ejector had a larger thrustaugmentation when the ejector was located at the upstream of the engine exit.Peak thrust augmentation level wasrecorded to be approximately 158% at upstream position.The results also showed preliminarily that the thrust aug-mentation was increased with increasing operating frequency. |
| Key words:
ejectors (pumps)
experiments
pulse detonation engines
shock waves;axial position
detonation frequency
thrust augmentation
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| 收稿日期: 2012-04-19
修回日期:
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| DOI: |
| 基金项目: 西北工业大学基础研究基金(CJ201035)资助 |
| 通讯作者:
Email： |
| 作者简介: 黄希桥(1973-)，女，西北工业大学副教授、博士，主要从事燃烧学和爆震燃烧基础研究。
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| 作者相关文章 |
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| 黄希桥 在本刊中的所有文章 |
| 李洋 在本刊中的所有文章 |
| 陈乐 在本刊中的所有文章 |
| 穆扬 在本刊中的所有文章 |
| 郑龙席 在本刊中的所有文章 |
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参考文献: |
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[12] 黄希桥,严传俊,邓君香等.引射器入口形状对 PDE 性能的影响.工程热物理学报,2008,29(9): 1486-1490Huang Xiqiao,Yan Chuanjun,Deng Junxiang,et al.Effect of Ejector Inlet Geometry on the Performance of Pulse DetonationEngine.Journal of Encineering Thermophysics,2008,29(9): 1486-1490 (in Chinese) |
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