一种反压自适应恒流喷嘴工作原理及实验研究  

Theoretic and Experimental Research on Pressure-adaptive and Flux-constant Orifice

作　　者：李芳[1] 王中伟[1] 张为华 

机构地区：[1]国防科技大学航天与材料工程学院,湖南长沙410073

出　　处：《国防科技大学学报》2007年第2期15-18,共4页Journal of National University of Defense Technology

基　　金：国家自然科学基金资助项目(50376071)

摘　　要：应水反应金属燃料发动机启动过程对水流量的苛刻要求,提出一种新型反压自适应恒流喷嘴。理论分析此喷嘴的流量自适应保持原理,通过流量特性实验验证此喷嘴能够自动调节流阻,实现流量恒定。Under the severe demand of the Water/Metal Fuel Motor on the flux of water in the starting period, a new type of pressure-adaptive and flux-constant orifice was brought forward. The flux-constant principle of this orifice with pressure-adaptability was analyzed theoretically. Experiments were carried out. Their results show that the orifice can satisfactorily adjust the flux resistance automatically and keep the flux constant.

关 键 词：反压自适应 流量恒定 喷嘴 水反应金属燃料发动机 

分 类 号：V435[航空宇航科学与技术—航空宇航推进理论与工程]