脉冲全息技术在发动机射流雾化场测量中的应用  

Measurement of Spray Characterization of Engine Nozzle by Pulsed Holography

作　　者：曹娜[1] 徐青[1] 曹亮[1] 雷岚[1] 韩长材[1] 马继明[1] 杜继业[1] 

机构地区：[1]西北核技术研究所,西安710024

出　　处：《现代应用物理》2013年第4期323-329,共7页Modern Applied Physics

摘　　要：采用脉冲激光全息诊断技术,对1 Ma^3 Ma超声速横向来流作用下的冲压发动机喷嘴燃料雾化性能及800K、0.55MPa加热来流作用下的涡轮发动机喷嘴雾化性能进行实验研究,获得了雾化粒子的空间分布、尺度分布、数密度分布以及指定区间的Sauter平均直径分布等重要参数,实现了燃油射流雾化特征参数的3维定量测量,同时测量了低速电雾化粒子的速度,获得了射流流向平面内的液滴速度分布。By using holographic method, experimental studies of spray characteristics are fin- ished in a supersonic wind tunnel with 1Ma-3Ma cross flow and in an aero turbine engine decompression blast chamber with a flow temperature of 800 K and a pressure of 0.55 MPa. By analyzing the reconstructed holographic droplets images, the sizes, locations, density dis- tribution, and Sauter mean distribution（SMD） of the spray droplets are obtained quantita- tively. Meanwhile, the droplets velocities in the plane along the spray produced by electro- static spray apparatus are obtained as well.

关 键 词：雾化 全息 喷嘴 

分 类 号：O438.1[机械工程—光学工程]