脉冲液体射流泵性能的理论分析及数值计算  

Theoretical analysis and numerical calculation of the performance of pulsed liguid jet pump

作　　者：康宏琳[1] 姚凯文[2] 陆宏圻[2] 阎超[1] 郭迪龙[3] 

机构地区：[1]北京航空航天大学航空科学与工程学院,北京100083 [2]武汉大学动力与工程学院,湖北武汉430072 [3]中国科学院力学研究所,北京100080

出　　处：《水动力学研究与进展（A辑）》2005年第4期538-543,共6页Chinese Journal of Hydrodynamics

摘　　要：推导了以往复泵为脉冲发生装置的脉冲液体射流泵准二维性能方程及其时均性能方程,导出无因次惯性水头及惯性力项便于计算的表达式,并对脉冲液体射流泵时均性能进行了数值计算,计算结果与试验数据基本吻合,将数值计算的模拟曲线与恒定液体射流泵性能曲线进行对照,证明了采用脉冲射流作为工作动力能够大幅提高射流泵的效率。The quasi 2D performance equations and time-average performance equations of pulsed liquid jet pump, which used reciprocating pump as impulser, were derived. The expressions of the non-dimensional inertial head and inertial force which were easy to calculate were derived. The time-average performance of pulsed liquid jet pumps was calculated, and the calculated results were coincident with experimental data. The calculated performance curves were compared with those of the steady liquid jet pump, which proved that using pulsed jet flow as working power could greatly improve the efficiency of jet pump.

关 键 词：脉冲液体 射流泵 数值计算 时均性能 

分 类 号：O358[理学—流体力学]