旋流空气对双油路离心喷嘴雾化特性影响的实验  

Experiment of swirled air effect on spray characteristic of double-line pressure-swirl atomizer

作　　者：周兵[1] 吉洪湖[1] 张宝诚[2] 

机构地区：[1]南京航空航天大学能源与动力学院,南京210016 [2]沈阳航空航天大学动力与能源学院,沈阳110136

出　　处：《航空动力学报》2013年第9期1933-1941,共9页Journal of Aerospace Power

摘　　要：采用相位多普勒粒子分析仪(PDPA)对带空气旋流器的双油路离心喷嘴的雾化特性进行了实验研究,供油压力的工作范围在0.3～2.1MPa,采用轴向逆流器,旋流器叶片出口角为79°,旋流器前后空气压降在0.03～0.15MPa,实验得到了索太尔平均直径(SMD)与喷雾锥角随供油压力与风速的变化规律.结果表明:在相同供油压力下,旋流器通入空气后,喷雾锥角值较未通入旋流空气时将增大15°～20°,索太尔平均直径比未通入旋流空气时减小40%.The spray characteristic of the double-line pressure-swirl atomizer with air swirler was investigated using phase Doppler particle analyzer（PDPA）.The fuel injection pressure ranged from 0.3MPa to 2.1MPa.The axial air swirler with blade outlet angle of 79°was adopted.The air pressure drop across the swirler ranged from 0.03MPa to 0.15 MPa.The change rules of Sauter mean diameter（SMD）and spray cone angle with fuel injection pressure and swirled air velocity were obtained.The results show that in contrast with the situation without swirled air,the spray cone angle increases by 15°～20°and the Sauter mean diameter decreases by 40% which is induced by swirled air under the same fuel injection pressure.

关 键 词：旋流空气 离心喷嘴 多普勒粒子分析仪 喷雾锥角 雾化 

分 类 号：V233.22[航空宇航科学与技术—航空宇航推进理论与工程]