Abstract: On the basis of the thermodynamics model of two-spool turbofan engine, performance of two-spool turbofan engine was improved by after-burning between high and low turbines. Effects of after-burning between high and low turbines on altitude, velocity and rotational speed characters were studied. The results show that thrust is obviously increased and SFC maintained on basic level or decreased are received by the after-burning between high and low turbines.

Key words: Turbofan engine;Turbine;Afterburning;Performance

摘要： 基于双轴涡扇发动机热力学模型,采用高低压涡轮间补燃的方法,实现了对发动机性能的改善。研究 分析了高低压涡轮间补燃对发动机高度特性、速度特性以及转速特性的影响。计算结果表明采用高低压涡轮间补 燃的热力循环后,发动机的推力明显提高,耗油率基本保持原来的水平或有所降低。

关键词: 涡轮风扇发动机;涡轮;加力燃烧;性能