Spray Characteristics of a Recessed Gas-Liquid Coaxial Swirl Injector

被引:38
|
作者
Yang, Li-Jun [1 ]
Ge, Ming-he [1 ]
Zhang, Meng-zheng [2 ]
Fu, Qing-fei [1 ]
Cai, Guo-biao [1 ]
机构
[1] Beihang Univ, Sch Astronaut, Beijing 100083, Peoples R China
[2] NW Polytech Univ, Xian 710100, Peoples R China
基金
中国国家自然科学基金;
关键词
D O I
10.2514/1.23977
中图分类号
V [航空、航天];
学科分类号
08 ; 0825 ;
摘要
The effect of recess length on the internal flow development and spray characteristics of a gas-liquid-swirl coaxial injector was investigated both theoretically and experimentally. Three different flow patterns were identified and explored as a function of the recess length. The spray-field dynamics and droplet-size distribution were measured by means of a high-speed photographic technique. An improved theoretical model was established to correlate experimental observations. An expression of the optimal recess length for atomization was obtained.
引用
收藏
页码:1332 / 1339
页数:8
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