火箭推进2012，Vol.38Issue(3)：17-22,6.
超声速进气道及冲压发动机动态特陛分析
Analysis of supersonic air inlet and ramjet dynamic characteristics
摘要
Abstract
A result, in which the air inlet shock wave position and the wave downstream pressure amplitude decreased with the frequency increase, but there was a harmonic peak on the longitudinal harmonic frequency, was obtained by calculation of supersonic air inlet dynamics model based on a linearization method. The fuel addition in the combustion chamber was farther considered. The dy- namic characteristics of ramjet air path were analyzed. A combustion model applying to the ramjet was deduced out for the ramjet dynamics analysis. The research indicates that the harmonic peak of ramjet amplitude-fxequency response is obvious under the perturbation of fuel jet flow.关键词
超声速进气道/冲压发动机/动态特性/燃烧模型/燃油扰动Key words
supersonic air inlet/ramjet/dynamical characteristic/combustion model/fuel flowperturbation分类
航空航天引用本文复制引用
刘华,雍雪君,梁俊龙,吴宝元..超声速进气道及冲压发动机动态特陛分析[J].火箭推进,2012,38(3):17-22,6.基金项目
国家“863”项目 （）
