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为研究水/一氧化二氮组合式射流预冷却涡轮(SteamJet)发动机性能,在建立了射流预冷却的热交换系统计算、物性修正计算、发动机部件特性修正计算和含一氧化二氮的燃烧室计算的数学模型的基础上,建立了基于双轴混排加力式涡扇发动机的水/一氧化二氮组合式SteamJet发动机性能计算模型。在最大加力状态控制规律下,计算分析了SteamJet发动机在水与一氧化二氮不同配比下沿飞行轨道的特性,以及水/一氧化二氮组合式SteamJet发动机的高度速度特性;计算分析了进气系统特性对SteamJet发动机特性的影响。结果表明:与单喷水预冷却的SteamJet发动机相比,水/一氧化二氮组合式SteamJet发动机具有更好的燃烧稳定性和推力特性,能够满足高超声速飞行的需求。
In order to study the performance of the combined steam / water vapor turbine (SteamJet) engine, the jet heat exchange system, the correction of physical properties, the correction of engine components and the combustion chamber containing nitrous oxide On the basis of the mathematical model, a model of water / N2O SteamJet engine performance calculation based on biaxial mixing turbo-charged turbofan engine was established. Under the control law of the maximum force state, the characteristics of the SteamJet engine along the flight path under different water and nitrous oxide ratios and the velocity characteristics of the Steam / Nitrous oxide SteamJet engine were calculated and analyzed. Effect of intake system characteristics on SteamJet engine characteristics. The results show that the combined SteamJet engine has better combustion stability and thrust characteristics than single-jet pre-cooled SteamJet engines and meets the needs of hypersonic flights.