靶式喷嘴雾化特性实验研究  

EXPERIMENTAL STUDY ON ATOMIZING FLOWFIELD OF TARGET SPRAY NOZZLE

作　　者：胡春波[1] 陈步学[1] 蔡体敏[1] 

机构地区：[1]西北工业大学航天工程学院

出　　处：《推进技术》1998年第6期54-57,共4页Journal of Propulsion Technology

摘　　要：对靶式喷嘴雾化特性用三维相位多普勒粒子分析仪进行了实验研究。测量结果显示，该靶式喷嘴雾化效果较好，喷雾中心粒度较小，粒度随气液质量比增大呈减小趋势，重力对喷雾场粒子速度分布有一定的影响。At target spray nozzle,high speed gas flow smashes the liquid film formed from jet impinging atomization into pieces. Atomizing flowfields at different vertical sections away from spray nozzle exit were measured by 3D PDPA system . The main respects measured are as follows:(1)The variation of particle mean velocity with Y ; (2) the proportion of particle number within different diameter ranges. The main results measured are as follows: (1) the target spray nozzle achieved good results; (2)atomized particle diameter decrease as ratio of air to water increases. (3)particle mean velocities are influenced by gravity

关 键 词：靶式喷嘴 燃油雾化 速度测量 粒度 航空发动机 

分 类 号：V233.42[航空宇航科学与技术—航空宇航推进理论与工程]