Abstract: The method of calculating for three-dimensional Jet-Wake flow has been presented and used in computer-aided-design of a centrifugal pumps. Modification of a US made submersible pumps has been studied in detail. Prediction of performances of those two pumps by theoretical analysis has been verified by experimental results. In the modified design, pump head in one-stage is increased from 2.7m to 4m and efficiency from 55%to 64%. The length of onestage pump is reduced from 75mm to 65mm.

摘要： 文中系统地介绍了射流—尾迹三元流动的计算方法。并将它用于离心泵的计算机辅助设计,结合对一种引进的潜油泵的改型设计,详细讨论了计算结果,实验结果证实了理论预见的正确. 与国外引进的潜油泵相比,单级泵的效率由55%提高到64%,级扬程由2.7米提高到4米,单级泵长度由75毫米缩短为65毫米。