【摘要】 为进行固体脉冲推力器点火启动过程的颗粒传热增强分析以及两相流动分析等研究的需要,采用MALVERN粒度分析仪和相应的辅助装置,检测了固体脉冲推力器排气羽烟中的颗粒粒度分布,得到了点火器燃烧产物和推进剂燃烧产物的颗粒粒度分布数据,检测结果表明,两种产物的颗粒粒度分布都呈多峰值分布状态,粒径范围为5~80μm,点火器燃烧产物的颗粒中间直径约为57μm;推进剂燃烧产物的颗粒中间直径约为39μm。更多还原

【Abstract】 To analyze the particle heat transfer enhancement in the ignition process and the two-phase flow of the solid impulsive thruster,particle distribution in the exhaust plume was measured with a MALVERN grading analyzer and corresponding assistant equipment.The particle distributions of the combustion products propellant were obtained.The results show that the particle distributions have multi-peaks and the particle diameters range from sum to 5~80μm.The media diameters of the combustion products are about 57μm and 39μm respectively.更多还原