气液同轴式喷嘴雾化特性的试验  

Experimental Study on Spray Characteristic of Gas-liquid Coaxial Injectors

作　　者：田章福[1] 吴继平[1] 陶玉静[1] 周进[1] 王振国[1] 

机构地区：[1]国防科技大学航天与材料工程学院,湖南长沙410073

出　　处：《国防科技大学学报》2006年第4期10-13,共4页Journal of National University of Defense Technology

基　　金：国家863计划资助项目(2002AA722011)

摘　　要：通过试验研究气液同轴直流式和气液同轴离心式喷嘴的雾化性能。研究表明:喷嘴出口扩张时可以改善喷嘴的雾化性能;气液同轴直流式和气液同轴离心式喷嘴都存在一个合适的缩进长度,在改善喷嘴雾化特性的同时对总流量影响较小;在相同条件下,气液同轴离心式喷嘴的喷雾性能要优于气液同轴直流式喷嘴的喷雾性能。Spray charactenshcs ot gas-liquid coaxial shear and swirl injectors were studired by conducting experiments.The results suggest that the injector outlet expanding can improve atomization performance; for the two kind of injectors, that is, gas-liquid coaxial swirl injectors and gas-liquid coaxial swirl injectors, with a proper indent length, they have good atomization performance and proper flow peffonnance; and under the same conditions, gas-liquid coaxial swirl injectors have better atomization performance than gas-liquid coaxial swirl injectors.

关 键 词：雾化 喷嘴 索特平均直径(SMD) 粒子动态分析仪(PDA) 

分 类 号：V433.9[航空宇航科学与技术—航空宇航推进理论与工程]