| 反压条件下同轴式喷嘴雾化特性的试验研究 |
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| 引用本文： | 吴晋湘,刘卫东,周猛,王振国,庄逢辰.反压条件下同轴式喷嘴雾化特性的试验研究[J].航空动力学报,1994,9(4):431-434,448. |
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| 作者姓名： | 吴晋湘 刘卫东 周猛 王振国 庄逢辰 |
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| 作者单位： | 1.国防科技大学 |
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| 摘 要： | 利用作者设计的反压试验装置和MF激光散射测粒仪, 在0.1～0.6MPa反压条件下, 测量了不同工况液雾的索太尔平均直径SMD等雾化特性参数, 并对试验数据进行最小二乘拟合, 得到了影响雾化特性相关参数的经验公式, 对同轴式喷嘴的设计将有一定的指导意义。
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| 关 键 词： | 喷嘴 雾化 反压 |
| 收稿时间： | 1993/12/1 0:00:00 |
| 修稿时间： | 4/1/1994 12:00:00 AM |
EXPERIMENTAL STUDY ON ATOMIZATION PERFORMANCE OF COAXIAL INJECTORS AT BACK VESSEL PRESSURE |
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| Wu Jinxiang,Liu Weidong,Zhou Mong,Wang Zhenguo and Zhuang Fengchen.EXPERIMENTAL STUDY ON ATOMIZATION PERFORMANCE OF COAXIAL INJECTORS AT BACK VESSEL PRESSURE[J].Journal of Aerospace Power,1994,9(4):431-434,448. |
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| Authors: | Wu Jinxiang Liu Weidong Zhou Mong Wang Zhenguo and Zhuang Fengchen |
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| Institution: | 1.1st Dept.National University of Defence Technology,Changsha 4100782.Institute of Command Technology CONDST |
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| Abstract: | A MF Laser Scatter Sizer and an experimental system designed by the authors were employed to measure the sprays produced by coaxial injectors of LOx/LH2 liquid rocket engines at back pressure in the vessel.Experimental results show that injectors work as both airblast and pressure nozzles;keeping the air/liquid mass flux ratio (ALR) constant,the atomization performance is improved when the air pressure drop (△Pg) is increased; and enhanced back pressure results in bad atomization of the liquid.Experimental correlations between spray mean size SMDand its main influential parameters have been obtained by fitting experimental data.Several injectors with different configurations have been investigated and the results obtained from the experiments provide valuable reference for injector design. |
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| Keywords: | Injector Atomization back pressure |
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