中文摘要：

根据固体燃料超燃冲压发动机的工作特点，以飞行Ma＝6、高度25 km为设计条件，对发动机各部件进行了初步设计。采用数值模拟方法，研究了不同来流条件下发动机各部件及总体性能的变化规律。结果表明，设计状态下的进气道流量系数接近1，来流马赫数降到4时，进气道启动失败；随来流马赫数的增大，火焰温度整体升高，燃烧效率逐渐降低；发动机在设计状态下产生的推力最大，比冲随来流马赫数的增大而降低。

英文摘要：

Based on the characteristics of solid fuel scramjet,various components were designed preliminarily under the condition of free stream Ma=6 and flight altitude of 25 km.Numerical simulations were performed to analyze the performance variation law of each component and the whole engine under different inflow conditions.The results show that the flow capture ratio approximates 1 under the design point.When free stream Mach decreases to 4,the inlet becomes unstarted.With the free stream Mach increasing,the flame temperature increases and the combustion efficiency decreases gradually.The thrust is largest under the design point,and the specific impulse decreases with the increase of free stream Mach.