摘要
膏体冲压发动机是在膏体发动机和冲压发动机基础上提出的一种新型组合动力装置。探讨了膏体冲压发动机的多种构型,并对其反应流场进行了数值模拟和燃烧效率分析。结果表明,采用将膏体富燃料直接喷射到补燃室的方式燃烧效率较高;随着进气道轴向距离的增加,补燃室头部的燃烧效率有所降低;随着进气道夹角的增加,补燃室燃烧效率略有增加。
Pasty propellant ramjet motors is a new propulsion system based on pasty propellant motor and ramjet motor. Various structure patterns of pasty propellant ramjet motors are presented and combustion efficiency of various structure patterns based on numerical simulation result of the reacting flow field of the motors analyzed. The research result shows that the structure pattern in which the pasty fuel-rich propellant is directly injected into after-burning chamber has higher combustion efficiency, and the foreside combustion efficiency of after-burning chamber decreases with the increase of axial distance of air intake ,while the combustion efficiency slightly increases with the increase of included angle of air intake.
出处
《固体火箭技术》
EI
CAS
CSCD
北大核心
2009年第3期262-265,270,共5页
Journal of Solid Rocket Technology
关键词
冲压发动机
膏体推进剂
燃烧效率
ramjet motors
pasty propellant
combustion efficiency
