针对固体燃料超燃冲压发动机燃烧室内不同凹腔结构的流场特性以及燃料与来流空气掺混效率进行了研完。总结了在不同结构燃烧室内流场特性,随着凹腔长深比的减少,凹腔内剪切层逐渐由偏向凹腔内部演变为偏向主流方向;同时对比燃烧室内有无凹腔结构时燃料与空气的掺混效率,说明凹腔结构对超声速气流下燃烧室内掺混效率的提高有明显的效果。 Aiming at the flow field characteristics of different cavity structures in the combustion chamber of solid fuel scramjet and the blending efficiency of fuel and incoming air, The characteristics of the flow field in the combustion chamber with different structures were summarized. With the decrease of the aspect ratio of the cavity, the shear layer in the cavity gradually evolved from the bias cavity to the direction of the mainstream. At the same time, And air mixing efficiency, indicating that the structure of the cavity of supersonic airflow combustion chamber to increase the mixing efficiency has obvious effects.