Progress in research on mixing techniques for transverse injection flow fields in supersonic crossflows

• Published in: Journal of Zhejiang University. A. Science Vol. 14; no. 8; pp. 554 - 564
• Main Authors: Huang, Wei, Yan, Li
• Format: Journal Article
• Language: English
• Published: Hangzhou Zhejiang University Press 01.08.2013
• Subjects: Civil Engineering; Classical and Continuum Physics; Combustion efficiency; Design engineering; Design optimization; Engineering; Flame holders; Industrial Chemistry/Chemical Engineering; Mathematical analysis; Mechanical Engineering; Ports; Pressure ratio; Review; Thrust; 喷射角; 多目标优化; 射流场; 数据挖掘技术; 混合技术; 火焰稳定器; 超燃冲压发动机; 高超音速; Aerospace propulsion system; Mixing; V43; Transverse injection; Supersonic crossflow
• ISSN: 1673-565X; 1862-1775
• DOI: 10.1631/jzus.A1300096

The transverse injection flow field has an important impact on the flowpath design of scramjet engines. At present a combination of the transverse injection scheme and any other flame holder has been widely employed in hypersonic propulsion systems to promote the mixing process between the fuel and the supersonic freestream; combustion efficiency has been improved thereby, as well as engine thrust. Research on mixing techniques for the transverse injection flow field is summarized from four aspects, namely the jet-to-crossflow pressure ratio, the geometric configuration of the injection port, the number of injection ports, and the injection angle. In conclusion, urgent investigations of mixing techniques of the transverse injection flow field are pro- posed, especiaUy data mining in the quantitative analytical results for transverse injection flow field, based on results from multi-objective design optimization theory.