为了快速预估冲压炮弹冲压发动机在设计点时的性能参数,根据冲压炮弹冲压发动机工作原理,利用一维气体定常流理论建立了冲压发动机内弹道的物理、数学模型。利用C++语言开发了发动机内弹道计算程序进行了典型算例的计算。通过将计算结果与实验数据比较,表明该方法在对固体冲压发动机内弹道计算上有一定的精度,能够满足工程设计阶段的要求。

In order to fast estimate the performance parameters of ducted solid rocket ramjet on the design point. A method of internal ballistic calculation in ramjet extended range projectiles was established, and established physical and mathematical model of ducted solid rocket ramjet, according to the theory of gas one-dimension steady flow. Using C++ language has developed a ballistic computer program within ducted solid rocket ramjet. The calculation results, by contrast with test dates, show that the method of interior ballistic calculation of solid rocket ramjet have a certain accuracy to meet the requirements of the ramjet design phase.