Ethylene Fueled Scramjet Combustion Experiments
Ethylene Fueled Scramjet Combustion Experiments
复制标题
DOI：
10.5539/mas.v7n5p51
复制
发表时间：
2013-04
影响因子：
3.5
通讯作者：
Deng Wei-xin;L. Jialing;Yang Shun-hua;Tian Ye;Zhang Wan-zhou;Xu Mingheng
中科院分区：
文献类型：
--
作者：
Deng Wei-xin;L. Jialing;Yang Shun-hua;Tian Ye;Zhang Wan-zhou;Xu Mingheng
基于脉冲风洞直连式实验平台，研究了不同供油方式对乙烯燃料超燃冲压发动机燃烧性能的影响。采用数值计算和光学诊断相结合的方法，揭示了超燃冲压发动机模型的物理特性。通过高速纹影实验揭示了燃烧室流场的结构。并通过数值计算得到了该结构的产品。实验结果与计算结果吻合较好，验证了数值计算的可靠性。通过喷油特性试验，得到了第一、二喷油器的稀燃极限和浓燃极限。用高速摄像机拍摄了不同单喷嘴喷入乙烯时火焰的时间演化过程。第一喷嘴的火焰稳定模式为“燃料喷射-尾流稳定模式”，第二喷嘴的火焰稳定模式为“空腔稳定模式”。
Effect of fueling scheme on ethylene-fueled scramjet combustion performance is investigated based on pulse wind-tunnel direct connected experiment platform. Both numerical computing and optical diagnosing are employed to reveal the physical features of the scramjet model. The structure of combustor flow-field is uncovered by high speed schlieren experiments. Also the structure is product by numerical computing. The good agreement between experiment results and computing results validated the reliability of numerical computing. The first and second injector’s lean limits and rich limits for combustion are obtained through injecting characteristics experiments. The time evolution of flame with ethylene injected at different single injector are demonstrated by high speed videos. The flame stabilization mode for the first injector is “fuel injection jet-wake stabilized mode”, which for the second injector is “cavity stabilized mode”.