| 缩进的气液同轴离心喷嘴雾化性能 |
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| 引用本文： | 杨立军,葛明和,张向阳.缩进的气液同轴离心喷嘴雾化性能[J].推进技术,2006,27(4):289-293. |
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| 作者姓名： | 杨立军 葛明和 张向阳 |
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| 作者单位： | 北京航空航天大学,宇航学院,北京,100083 |
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| 摘 要： | 1引言自从Rocketdyne1]在1963年研制J-2发动机过程中第一次提出有缩进的同轴喷注单元后,缩进对同轴喷注单元的影响就引起了人们的广泛关注。一些研究实验表明,液体喷嘴缩进对同轴喷嘴雾滴尺寸的影响不明显或可以忽略1]。Sankar等人在研究同轴剪切喷注器时,采用相位多普勒粒子
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| 关 键 词： | 喷嘴 缩进距离~ 雾化特性 |
| 文章编号： | 1001-4055（2006）04-0289-05 |
| 收稿时间： | 2005-07-15 |
| 修稿时间： | 2005-09-16 |
Spray characteristics of recessed gas-liquid coaxial swirl injector |
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| YANG Li-jun,GE Ming-he and ZHANG Xiang-yang.Spray characteristics of recessed gas-liquid coaxial swirl injector[J].Journal of Propulsion Technology,2006,27(4):289-293. |
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| Authors: | YANG Li-jun GE Ming-he and ZHANG Xiang-yang |
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| Institution: | School of Astronautics, Beijing Univ. of Aeronautics and Astronautics, Beijing 100053, China |
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| Abstract: | To investigate the effect of recess on the spray characteristics of gas-liquid coaxial swirl injector, three different flowing models of recessed mixing chamber were built, and the effects of different recess distance on the spray characteristics were theoretically analyzed. Water and compressed air are used as the simulating models. High velocity dynamic testing system is used to test parameters of the spray characteristics. The theory proposed has been validated. An empirical equation of prime recess distance is deduced. |
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| Keywords: | Injector Recess distance~+ Spray characteristics |
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