| 引用本文: | 周进,胡小平,黄玉辉,等.液体火箭发动机气液同轴式喷嘴混合特性实验研究.[J].国防科技大学学报,1997,19(4):9-13.[点击复制] |
| Zhou Jin,Hu Xiaoping,Huang Yuhui,et al.A Study of the Mixing Characteristics of Gas-Liquid Coaxial Swirling Injector of Liquid Rocket Engine[J].Journal of National University of Defense Technology,1997,19(4):9-13[点击复制] |
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| 液体火箭发动机气液同轴式喷嘴混合特性实验研究 |
| 周进, 胡小平, 黄玉辉, 王振国 |
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(国防科技大学 航天技术系 湖南 长沙 410073)
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| 摘要: |
| 本文通过实验研究了液体火箭发动机气液同轴离心式喷嘴的混合特性。利用两相探针技术, 测量了喷嘴下游喷雾流场中气液流强和混合比分布, 考察了喷嘴缩进比和气液喷注压降等参数对混合特性的影响。结果表明, 气液同轴离心式喷嘴的缩进比对喷嘴混合特性有较大影响, 增大缩进比将导致更窄的气液流强分布和更均匀的混合, 而改变气液喷注压降将导致不同的流强和混合比分布规律。 |
| 关键词: 气液同轴离心式喷嘴, 混合特性, 缩进比 |
| DOI： |
| 投稿日期：1997-01-05 |
| 基金项目: |
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| A Study of the Mixing Characteristics of Gas-Liquid Coaxial Swirling Injector of Liquid Rocket Engine |
| Zhou Jin, Hu Xiaoping, Huang Yuhui, Wang Zhenguo |
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(Department of Aerospace Technology, NUDT, Changsha, 410073)
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| Abstract: |
| This paper presents an experimental study on the mixing characteristics of gas-liquid coaxial swirling injector of liquid rocket engine. A two-phase probe technique was employed to measure the distributions of gas and liquid mass flux and mixing ratio in sprays. The effects of the recess ratio of injector and the pressure drop of gas and liquid injection on the mixing characteristics were investigated. The results show that the recess ratio of injector plays a significant role in the mixing between gas and liquid flows from the coaxial swirling injector . Increasing the recess ratio will result in more uniform mixing between gas and liquid, and changing the pressure drop of injection will result in different distribution of mass flux and mixing ratio. |
| Keywords: gas-liquid coaxial swirling injector, mixing characteristics, recess ratio |
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