The spray characteristic of gas-liquid coaxial swirl injector by experiment

被引：0
|
作者：
Chen Chen [1 ,2 ]
Yan Zhihui [2 ]
Yang Yang [2 ]
Gao Hongli [1 ]
Yang Shunhua [2 ]
Zhang Lei [2 ]
机构：
[1] Southwest Jiaotong Univ, Sch Mech Engn, Chengdu 640031, Sichuan, Peoples R China
[2] China Aerodynam Res & Dev Ctr, Air Breathing Hyperson Technol Res Ctr, Mianyang 621000, Peoples R China
来源：
2017 INTERNATIONAL CONFERENCE ON MECHANICAL, AERONAUTICAL AND AUTOMOTIVE ENGINEERING (ICMAA 2017) | 2017年 / 108卷
关键词：
D O I：
10.1051/matecconf/201710804007
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Using the laser phase Doppler particle analyzer (PDPA), the spray characteristics of gas-liquid coaxial swirl injector were studied. The Sauter mean diameter (SMD) , axial velocity and size data rate were measured under different gas injecting pressure drop and liquid injecting pressure drop. Comparing to a single liquid injection, SMD with gas presence is obviously improved. So the gas presence has a significant effect on the atomization of the swirl injector. What's more, the atomization effect of gas-liquid is enhanced with the increasing of the gas pressure drop. Under the constant gas pressure drop, the injector has an optimal liquid pressure drop under which the atomization performance is best.
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页数：5
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