航空工程进展2024，Vol.15Issue(4)：50-55,6.DOI:10.16615/j.cnki.1674-8190.2024.04.06
桨扇发动机推进效率分析方法研究
Research on analysis method of propulsive efficiency of prop-fan engine
摘要
Abstract
It is of great significant for prop-fan engine under medium to high Mach number to evaluate the propul-sive efficiency of turbofan,turboprop and prop-fan engines.The mathematical model for propulsive efficiency anal-ysis is established by using energy-momentum method based on the model of separate exhaust turbofan engines,and a unified propulsive efficiency analysis method is formed for turbofan,prop-fan and propeller fan engines.Dif-ferent external fan pressure ratios,equivalent bypass ratios and different flight Mach number are selected for calcula-tion.The results show that the propulsion efficiency of turboprop engine is higher at medium to low flight Mach number,the propulsion efficiency of prop-fan engine is higher at medium to high flight Mach number,and the pro-pulsion efficiency of turbofan engine is higher at high subsonic flight Mach number.The existing flight Mach num-ber interval distribution law of the superior propulsion efficiency of turboprop,prop-fan and turbofan engines is con-formed.The study can provide a method for the research and analysis of the propulsion efficiency of turbofan,turbo-prop and prop-fan engines.关键词
桨扇发动机/涵道比/推进效率/数学模型Key words
prop-fan engine/bypass ratio/propulsion efficiency/mathematical model分类
航空航天引用本文复制引用
黄兴,李伟,杨宇飞,郑华雷..桨扇发动机推进效率分析方法研究[J].航空工程进展,2024,15(4):50-55,6.基金项目
两机国家重大专项 （）
