不同结构形式气液同轴式喷嘴的流量特性  

The Flowrate Characteristics of Gas liquid Coaxial Swirling and Unswirling Injectors

作　　者：周进[1] 童荣瑜[1] 沈赤兵[1] 黎勤武[1] 王振国[1] 

机构地区：[1]国防科技大学航天技术系,长沙410073

出　　处：《国防科技大学学报》1999年第5期1-4,共4页Journal of National University of Defense Technology

基　　金：国家 8 6 3项目资助

摘　　要：本文通过实验方法对两种不同结构形式的气液同轴式喷嘴流量特性进行了研究,重点考察了喷嘴内气液相互作用和环境反压的变化对喷嘴流量特性的影响,研究结果表明同轴离心式喷嘴内气液相互作用比同轴直流式喷嘴内气液相互作用要强。对于这两种喷嘴,反压的变化对气相流量的影响规律相同。This paper presents the result of an experimental study on the flowrate characteristics of coaxial swirling injector and coaxial unswirling injector. Effects of the interaction between gas and liquid flows in injector and the change of environmental pressure on the flowrate characteristics of injectors are investigated. The results show that the effect of the interaction between gas and liquid flows is much more significant for coaxial swirling injector than that for coaxial unswirling injector, and that increasing environmental pressure results in the same effects on the gas flowrate characteristics, but effects on the liquid flowrate characteristics for these two type injectors are different.

关 键 词：气液同轴式喷嘴 流量特性 实验 液体火箭发动机 

分 类 号：V434.2[航空宇航科学与技术—航空宇航推进理论与工程]