摘要
利用高速摄影和高速纹影对超燃冲压发动机支板喷注燃料的燃烧流动过程进行了试验研究,结果表明:燃料喷注器与火焰稳定器之间的相对位置,对流场的火焰结构和发动机性能有较大的影响,支板侧喷较尾喷方案具有更好的燃烧效果.燃烧与流动强烈耦合,燃烧放热使得燃烧室压力升高,改变了上游来流流场结构,流场结构的改变同时又影响到了燃料的喷注、扩散和混合过程.
Experimental studies on the combustion and flow process in a scramjet combustor with strut fuel injector were presented. The results show that, the relative position of the fuel injector （strut） and flame holder （cavity） has great influence on the flame structure and scramjet performance. The combustion efficiency of fuel injected from the side of strut is better than from strut end. Combustion and flow process interact with each other intensively. Due to the quantity of heat released from combustion, the flow structure changes greatly, consequently, the fuel injection, diffusion and mixing with air are affected.
出处
《航空动力学报》
EI
CAS
CSCD
北大核心
2009年第1期55-59,共5页
Journal of Aerospace Power
基金
教育部新世纪优秀人才支持计划
