摘要
在对固体火箭发动机喷管内流场数值仿真模型改进的基础上 ,成功地对超音速火焰喷枪气流及喷嘴加速管内粒子的速度场和温度场进行了数值仿真 ,其结果揭示了超音速喷涂焰流速度场和温度场的变化规律。根据数值仿真结果分析了喷枪结构参数 (喷嘴、加速管 )及粉末粒度对两相流场的影响 ,即对不同参数数值重复仿真计算 。
On the basis of the numerical simulation model for an improved rocket nozzle, numerical simulation for the speed field and temperature field of the flame and particles of a supersonic air fuel spraying gun in the tube is successfully performed. The rules of change for the speed field and temperature field of flame and particles in supersonic air fuel spraying during the spraying process are made known. Structural parameters in the nozzle and acceleration tube of the gun and effects of particle size in the speed field and temperature field are discussed. The foundation on improving the heating and acceleration property of spray particles is thus established.
出处
《兵工学报》
EI
CAS
CSCD
北大核心
2002年第4期565-568,共4页
Acta Armamentarii
