| 超燃冲压发动机燃烧室光学测量技术发展现状 |
| Optical measurement techniques for scramjet combustor: A review |
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| 中文摘要: |
| 综述了超燃冲压发动机燃烧室光学测量技术的最新发展现状，归纳了三类测量方法：一维方法、二维方法和三维方法。一维方法可以测量燃烧室某个点或某条线平均的燃烧组分浓度以及温度信息，是研究燃烧化学反应特性的重要手段；二维方法可以实现燃烧室火焰结构或流场信息的面测量，是研究燃料与空气的掺混特性、火焰传播特性，以及火焰与湍流、旋涡、激波相互作用的重要手段；三维方法是对二维方法测量能力的重要拓展，他可以克服二维方法只能对流场一个平面进行测量或只能获得整个流场积分信息的缺陷，实现燃烧场的空间三维测量。指出了未来内窥技术是满足真实的燃烧室结构光学测试的重要途径，总结了当前超燃冲压发动机燃烧室光学测量工程应用的主要难题，展望了提升超燃冲压发动机燃烧室光学测量成熟度的方法。 |
| 英文摘要: |
| This paper reviews the latest developments and applications of optical techniques for measurements in scramjet combustor. Three categories of measurement methods are summarized: one?dimensional method, two?dimensional method and three?dimensional method. One?dimensional method can measure the combustion species concentration and temperature at a point or along a line in the combustion chamber, which is an important means to study the characteristics of combustion chemical reactions. Two?dimensional method can realize the planar measurement of flame structure or flow field information, and is an important approach to study the mixing of fuel and air, flame propagation, and the interaction between flame and turbulence, vortex and shock wave. The three?dimensional method is an important extension of the measurement ability of the two?dimensional method. It can overcome the line?of?sight limitation of the two?dimensional method, and realize the three?dimensional measurement of the combustion field. It is pointed out that endoscopy technology will be an important approach to meet the needs of optical testing in realistic combustion chamber. This paper summarizes the major problems encountered in the application of optical measurement in scramjet combustion chamber. Possible methods to improve the maturity of optical measurement in scramjet combustion chamber is prospected. |
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| 中文关键词: 超燃冲压发动机 燃烧室 光学测量 激光吸收光谱 |
| 英文关键词:scramjet combustor optical measurement laser absorption spectroscopy |
| 基金项目: |
| DOI：10.11823/j.issn.1674-5795.2024.03.04 |
| 引用本文：吴凌昊, 石小江, 李杨, 雷庆春, 范玮.超燃冲压发动机燃烧室光学测量技术发展现状[J].计测技术,2024,44(3):. |
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