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. Experiments were conducted on the combustion flow of fuel injected into the scaffolding of the scramjet using high-speed photography and high speed profiling. The results show that the relative position between the fuel injector and the flame stabilizer, the flame structure of the flow field and Engine performance has a greater impact on the side of the jet than the end jet spray program has a better combustion.Combustion and flow of a strong coupling, combustion exotherm makes the combustion chamber pressure increases, changing the flow structure of the upstream flow, the flow field Structural changes also affect the fuel injection, diffusion and mixing processes.