中文摘要：

为获得脉冲液体射流泵性能方程中各参数对其性能的影响规律，用数值计算的方法对脉冲液体射流泵的基本性能方程进行了系统的研究，得出了脉冲射流主要是提高射流泵的卷吸率的结论。定量分析了喉管流速系数和喉管进口段的流速系数等参数的变化规律及其对性能的影响程度，进一步探明了其内部流动规律，对设计性能优良的射流泵具有理论指导意义。

英文摘要：

In this paper, for obtaining the affect law of parameters to pulsed liquid jet pump performance,the fundamental performance equation is systematically studied by the numerical calculating method. The conclusion is obtained that pulsed jet could mainly improve the entrainment rate of liquid jet pump. The change laws of parameters such as velocity coefficients of the throat and in throat inlet section,and their impact to the performance are analyzed quantitatively. Its internal flow laws have been studied further. These conclusions have theoretical guidance significance to designing better performance pulsed liquid jet pump.