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 ran-dom particle stochastic trajectory and particle partial deposition model. The effects of several parameters on deposition were dis-cussed,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.
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