中文摘要：

考虑了带收敛、扩张、收敛扩张三种喷管的脉冲爆震发动机模型。推导了一维CE／SE方法的计算格式，并将之应用于脉冲爆震发动机内部流场的模拟中，通过对模拟结果的定性分析与定量计算,发现带喷管的PDE能提高其性能参数一冲量，但不同类型的喷管对其性能的影响并不相同。这些分析结果对PDE模型的改进以及PDE性能的提高都有较大的参考价值。

英文摘要：

In this paper, three pulse detonation engine with different nozzles-convergent, divergent, convergent-divergent nozzle are designed. A new method of CE/SE （the space-time conservation element and solution element） is deduced to simulate the PDE＇s interior flow. The qualitative analysis and the quantitative analysis to the result of simulation are done. It shows that the PDE with a nozzle can improve the performance parameter-impulse, but different nozzle has the different effects on PDE performance. So, all results of the simulation have an important effect on improving the model or performance of the PDE.