高超声速航空发动机强预冷技术研究
收稿日期: 2015-04-30
修回日期: 2015-05-17
网络出版日期: 2015-06-02
Precooling technology study of hypersonic aeroengine
Received date: 2015-04-30
Revised date: 2015-05-17
Online published: 2015-06-02
高超声速飞行器动力是水平起降重复使用高超声速飞行器和单级入轨航天器能否成功的决定性因素,但目前仍面临许多问题,而强预冷是解决高超声速飞行器动力面临的问题的重要手段。本文对比分析了国外已有预冷发动机方案,并对其中优势最为明显的高超声速强预冷航空发动机的研究进展进行了总结。针对高超声速强预冷航空发动机中最为核心的紧凑快速强换热器,详细介绍了国内在其所涉及的微尺度流热耦合换热机理、流热耦合数值模拟、紧凑强换热器设计制造等方面的进展。国内外已有研究表明,强预冷高超声速航空发动机技术是一项具有非常巨大的潜在技术优势和前瞻性的共性技术,有望成为未来最适用的高超声速飞行器动力技术,值得引起关注并开展进一步的深入研究。
邹正平 , 刘火星 , 唐海龙 , 万敏 , 王洪伟 , 陈小龙 , 陈懋章 . 高超声速航空发动机强预冷技术研究[J]. 航空学报, 2015 , 36(8) : 2544 -2562 . DOI: 10.7527/S1000-6893.2015.0144
Hypersonic engine is a key component for hypersonic vehicle to achieve horizontal takeoff and landing, as well as the reusability, consequently, it reduces the launching costs greatly. So far, there are still many serious problems that the hypersonic engine has to face, while, precooling is considered to be an important technology which can solve some of them. This paper reviews and analyzes the existing precooling engines worldwide and summarizes the research progresses of a hypersonic precooling aeroengine, which is the most advanced project. The paper also introduces domestic research on the compact precooler, the core component of hypersonic precooling aeroengine, which includes the microscale conjugate heat transfer mechanism and simulation, as well as heat exchanger design and processing technology. All the researches indicate that the hypersonic precooling aeroengine is a generic technology with great potential advantages and perspectiveness, which is expected to be the most applicable hypersonic propulsion technology in the future. Evidently, it is worthy of attention and further study.
Key words： hypersonic; precooling; aeroengine; compact precooler; conjugate heat transfer
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