| 引用本文: | 刘道平,夏智勋,胡建新,等.固冲补燃室团聚硼颗粒燃烧试验.[J].国防科技大学学报,2015,37(5):116-120.[点击复制] |
| LIU Daoping,XIA Zhixun,HU Jianxin,et al.Experimental investigation of combustion of boron particle agglomeration in secondary chamber[J].Journal of National University of Defense Technology,2015,37(5):116-120[点击复制] |
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| 固冲补燃室团聚硼颗粒燃烧试验 |
| 刘道平1, 夏智勋1, 胡建新2, 黄利亚2, 方传波1 |
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(1.国防科技大学 高超声速冲压发动机技术重点实验室， 湖南 长沙 410073;2.国防科技大学 航天科学与工程学院， 湖南 长沙 410073)
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| 摘要: |
| 研究团聚硼颗粒在补燃室中的点火燃烧对提高固冲发动机性能具有重要意义。通过试验模拟固冲发动机工作过程的方法，开展了补燃室流场条件下的团聚硼颗粒点火燃烧试验。结合高速火焰图像处理技术和流场参数测量结果，对试验中团聚硼颗粒的点火燃烧状态、火焰结构以及颗粒尺寸变化等进行了分析，获得了补燃室燃气温度和氧气含量等因素对团聚硼颗粒点火燃烧过程的影响机制。对燃烧残渣进行了分析，发现燃烧前后颗粒尺寸变化不大，燃烧过程中高温气流可能进入了颗粒内部并与硼颗粒发生反应。 |
| 关键词: 固冲补燃室 团聚硼颗粒 燃烧 试验研究 |
| DOI：10.11887/j.cn.201505018 |
| 投稿日期：2014-11-28 |
| 基金项目:国家自然科学基金资助项目（51276194） |
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| Experimental investigation of combustion of boron particle agglomeration in secondary chamber |
| LIU Daoping1, XIA Zhixun1, HU Jianxin2, HUANG Liya2, FANG Chuanbo1 |
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(1. Science and Technology on Scramjet Laboratory, National University of Defense Technology, Changsha 410073, China;2.College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, China)
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| Abstract: |
| Investigation of boron particle agglomeration ignition and combustion in secondary chambers is very important for increasing the capabilities of ducted rockets. By experimentally mimicking ducted rockets, boron particle agglomeration ignition and combustion in secondary chamber flow field was investigated. The ignition and combustion processes, flame constructions and size changes of boron particle agglomeration were analyzed with the image processing techniques of high speed flame and the measurement results of flow field parameters. The effects of gas temperature and oxygen content on ignition and combustion of boron particle agglomeration were acquired. The analysis result of residue indicates that the particle size changes little and the gas may get into the boron particle agglomeration and react with boron particles. |
| Keywords: secondary chamber boron particle agglomeration combustion experimental investigation |
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