二次进气固冲发动机补燃室粒子沉积数值模拟  

Numerical simulation of particle deposition in solid rocket ramjet chamber with secondary air inlets

作　　者：严聪[1] 张志峰[1] 马岑睿[1] 张成涛[1] 

机构地区：[1]空军工程大学防空反导学院,西安710051

出　　处：《固体火箭技术》2014年第3期320-323,共4页Journal of Solid Rocket Technology

摘　　要：基于随机颗粒轨道模型和颗粒部分沉积模型,对二次进气固冲发动机补燃室壁面的粒子沉积进行了探索研究,讨论了空燃比、进气间距及流量分配比等参数对沉积的影响。结果表明,随空燃比增大,沉积区域有一个明显的前移,空燃比对沉积的影响分为两个阶段;进气间距对沉积的影响较复杂;流量分配比增大,沉积区域变化不大,但沉积总量增加。Particle deposition in solid rocket ramjet chamber with secondary air inlets was numerically simulated based on random particle stochastic trajectory and particle partial deposition model. The effects of several parameters on deposition were discussed,such as air-to-fuel ratio,inlet interval,flow distribution ratio etc. The results show that there is an obvious forward move with accretion of air-to-fuel rate,leading to two sections concerning the effects of air-to-fuel ratio. The effects of inlet interval on deposition are complex. The deposition regions change little but the deposition gross increases with the accretion of flow distribution ratio.

关 键 词：二次进气固冲发动机 补燃室 粒子沉积 数值模拟 

分 类 号：V435[航空宇航科学与技术—航空宇航推进理论与工程]