摘要
研究粉末燃料冲压发动机的理论性能,采用编制的热力计算软件,分别对以硼粉、铝粉、镁粉为燃料的发动机性能进行了计算,分析了不同参数对发动机比冲的影响趋势,为进一步研究及发动机设计奠定了基础。通过与常规液体燃料冲压发动机及固体火箭冲压发动机进行比较,说明了粉末燃料冲压发动机在比冲及体积比冲方面的优势。鉴于金属粉末燃烧产物中凝相物质含量高的特点,研究了两相流损失对发动机性能的影响。
To investigate the performance of powered fuel ramjet the performances of several ramjets were calculated. Effects of fuel, air/fuel ratio, pressure of combustion chamber, Mach number and flight height on specific impulse of engine were analyzed. By comparing powdered fuel ramjet to conventional ducted rocket and liquid fuel ramjet, it was found that powdered fuel ramjet can exceed liquid fuel ramjet in volumetric specific impulse and exceed ducted rocket on specific impulse and volumetric specific impulse. In addition, the influence of two phase losses on performance of engine was discussed.
出处
《推进技术》
EI
CAS
CSCD
北大核心
2007年第2期181-185,共5页
Journal of Propulsion Technology
关键词
粉末燃料冲压发动机^+
热力计算^+
比冲
体积比冲^+
二相流
Powdered fuel ramjet^＋
Thermodynamic calculation^＋
Specific impulse
Volumetric specific impulse^＋
Twophase flow
