论文部分内容阅读
考虑发动机燃烧产物的具体组分,采用随机颗粒轨道模型对某型固体火箭发动机处于不同过载状态时的多组分两相流流场进行了计算,分析了凝相粒子的运动情况及其对燃气流动的影响。结果表明,横向过载会对流场结构产生较大的影响,轴向过载的影响较小,但会改变粒子对绝热层冲蚀最大点位置和最大冲击速度;喷管的收敛段受粒子冲蚀最严重;过载不会对发动机推力矢量产生影响。
Taking into account the specific components of engine combustion products, the stochastic particle orbit model is used to calculate the flow field of a multi-component two-phase flow when a solid rocket motor is under different overload conditions. The motion of condensed-phase particles and its effect on gas The impact of the flow. The results show that the lateral overloading will have a greater impact on the flow field structure and the axial overloading will have less impact on the flow field but will change the position and the maximum impact velocity of particles on the maximum erosion point of the insulation layer. The most serious; overload does not affect the engine thrust vector.