关键词: 冲压喷气发动机;亚音速燃烧;燃烧控制;火焰稳定器

Abstract: According to the characteristics of hydrogen combustion in subsonic ramjet,a type of flameholders was designed to produce streamwise vortex for mixing enhancement.Both cold flow test and combustion experiment show that SVGs with higher combustion efficiency and lower total pressure loss are much better than traditional V tpye flame holder.A square hole jet was used in SVGs,and the mixing effect of square hole jet was better than that of the circular hole jet.

Key words: Ramjet engine;Subsonic combustion;Combustion control;Flame holder