关键词: 火箭发动机;引射式冲击发动机;复合式发动机;概念研究;设计方案;性能预测

Abstract: The Rocket Based Combined Cycle Propulsion system and the development of it’s conceptual design model were briefly described. Based on the analysis of current model’s shortcomings, an one dimensienal performance computation model was established by applying quasi one dimensional flow model and chemistry model. In this model, multiple elements, such as variable cross section area, ejecting, fuel injecting, mixing, combustion and so on were considered. The model was solven by implicit RK algrithm, the results agree with the literature.

Key words: Rocket engine;Ejector ramjet engine;Comp