摘要
以WP7燃油喷嘴为研究对象,利用非接触式激光测试技术粒子成像测速仪PIV(Particle Image Velocimetry)测量了双油路雾化喷嘴所形成的喷雾场,得到了不同油路不同压力下的喷雾场图像与速度矢量图。试验图像表明:雾化过程是一个从液膜到液滴,再二次雾化或者重新聚合的复杂过程;在一定压力范围内,喷雾锥角与供油压力的大小无关;不同的油路情况下,喷雾锥角也不相同,且与喷嘴的结构特点有关。
For a WP7 fuel nozzle, the spray field caused by a duplex-oil circuit pressure atomizing nozzle was measured using the Particle Image Velocimetry （PIV）, a non-contact laser measurement technique. Pictures of spray field and velocity vector were obtained under different oil circuit and oil pressure. The test images show that the atomization is a complex process from liquid film to liquid droplets, and then second aryatomization or re-polymerization. The spray cone angle is not related toa certain pressure. The spray cone angle is different using different oil circuit, largely dependent on the geometry of nozzle.
作者
申力鑫
王成军
张中飞
于雷
刘爱虢
SHEN Li-xin WANG Cheng-jun ZHANG Zhong-fei YU Lei LIU Ai-guo(Faculty of Aerospace Engineering, Shenyang Aerospace University, Shenyang 110136, China)
出处
《沈阳航空航天大学学报》
2017年第4期27-33,共7页
Journal of Shenyang Aerospace University
基金
国家自然科学基金(项目编号:51476106)
辽宁省自然科学基金(项目编号:2015020639)
关键词
PIV
双油路
压力雾化喷嘴
喷雾锥角
速度分布
液膜
PIV
duplex-oilcircuit
pressure atomizing nozzle
spray cone angle
velocity distribution
liquid film
