The paper focuses on the turbo ramjet engine, which is a kind of airbreathing engine.It is expected to apply for hypersonic transport propulsion system. In the process fromturbo mode to ramjet mode, the turbo ramjet c...The paper focuses on the turbo ramjet engine, which is a kind of airbreathing engine.It is expected to apply for hypersonic transport propulsion system. In the process fromturbo mode to ramjet mode, the turbo ramjet composed engine operates through the way ofcombined cycle. In this paper the combined cycle performance was simulated for two layouts.The results show that the laws are feasible.展开更多
随着对远程、宽马赫数范围内高速飞行器的需求日益迫切,超燃冲压发动机(Scramjet)、甚至未来涡轮基组合循环发动机(Turbine Based Combined Cycle,TBCC)等已成为国内外研究的焦点。推进系统是高超声速飞行器能否实现宽马赫数范围内高效...随着对远程、宽马赫数范围内高速飞行器的需求日益迫切,超燃冲压发动机(Scramjet)、甚至未来涡轮基组合循环发动机(Turbine Based Combined Cycle,TBCC)等已成为国内外研究的焦点。推进系统是高超声速飞行器能否实现宽马赫数范围内高效工作的关键,而非对称喷管(Single Expansion Ramp Nozzle,SERN)是其重要组成部分和关键技术之一。本文主要分析了远程、宽马赫数范围内高速飞行器对其发动机尾喷管的特殊要求,简要回顾了国内外相关的研究进展,重点介绍了本课题组针对超燃冲压及组合循环发动机尾喷管设计方法的主要工作和研究进展。结果表明:在大落压比下,不同的设计方法对非对称喷管的气动性能,特别是升力和俯仰力矩影响较大。最后对未来的研究进行了展望,旨在总结目前的相关研究进展,梳理关键科学与技术问题,为后续的研究工作提供参考。展开更多
文摘The paper focuses on the turbo ramjet engine, which is a kind of airbreathing engine.It is expected to apply for hypersonic transport propulsion system. In the process fromturbo mode to ramjet mode, the turbo ramjet composed engine operates through the way ofcombined cycle. In this paper the combined cycle performance was simulated for two layouts.The results show that the laws are feasible.