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研究出一种圆锥形水射流喷嘴，并对其结构特点及压力分布进行了分析，从理论和试验结果论述了影响喷嘴射流扩散角的结构因素，包括叶轮叶片的出口角和射流截面压力分布，文中引入喷嘴的几何特征数Ω来表征喷嘴的旋转强度，可用于衡量喷嘴的质量。
A conical water jet nozzle was developed and its structural characteristics and pressure distribution were analyzed. The structural factors influencing the nozzle jet divergence angle were discussed from the theoretical and experimental results, including the outlet angle of the impeller blades and the jet pressure distribution, In this paper, we introduce the nozzle geometry number Ω to characterize the rotation strength of the nozzle, which can be used to measure the nozzle quality.