论文部分内容阅读
从两个方面研究了在加速度场下含铝复合推进剂燃烧中粒子动力学:在理论分析中,以牛顿运动定律为基础,运用粘流N-S方程导出燃烧产物中凝聚铝粒子运动方程,计算出加速度与粒子临界尺寸的关系曲线;在试验研究中,用研制的燃烧实验装置和动态粒子采集器,在不同加速度条件下获取燃烧产物中的铝粒子。研究结果表明,理论分析计算和试验研究结果基本吻合,从而验证了加速度效应的基本原理。
Particle dynamics in the combustion of aluminum-containing composite propellants under acceleration field are studied in two aspects: In the theoretical analysis, based on Newton’s law of motion, the motion equation of agglomerated aluminum particles in the combustion products is derived by viscous flow N-S equation, Calculate the relationship between the acceleration and the critical particle size. In the experimental study, the aluminum particles in the combustion products were obtained under different accelerations with the developed combustion experiment device and dynamic particle collector. The results show that the theoretical analysis and experimental results are in good agreement with each other, which verifies the basic principle of acceleration effect.