高速液体受限射流扩展形态研究

采用一种火药燃烧驱动液体喷射的新装置及其测试系统，研究受限空间中高速惰性液体射流的扩展结构。观察了环境反压、液体粘性、喷嘴结构等参量对射流扩展形态的影响，分析了射流雾化机理。研究结果对改进燃烧室设计及控制燃烧稳定性有一定的指导意义。

INVESTIGATION OF DIVERGENCE FORM OF CONFINED HIGH SPEED LIQUID JETS

This paper presents a new type of experimental device that can be used to visualize liquid injection and jet atomization processes,its power source is burned gas produced by combustion of solid propellant.With this system,the divergence structure of the high speed inert liquid jet is investigated in the confined space,and the effects of back pressure,liquid viscosity,nozzle structure,etc,on the divergence form are studied.Mechanisms of atomization of liquid jets are discussed.The results are important to design combustion chamber geometry and control combustion stability.