Both lifting design method and quasi - three - dimensional design method has been applied to the design of axial flow pump impeller 本文分别采用升力法和准三维的方法对轴流泵叶轮进行了设计计算和性能预估。
Not only axial force on pump impeller but also its fluctuation is the biggest among the axial forces on the three working rollers 泵轮的轴向力最大，且变化起伏较大；其他两轮的轴向力变化较平稳，且数值也较小。
In this paper , an organic combination of surface molding and numerical calculation is applied to optimization design for centrifugal pump impellers 本文将曲面造型与数值计算有机的结合在一起应用到离心泵叶轮的优化设计中。
An optimization design system has been constructed and practically used for centrifugal compressor components and mixed - flow pump impeller 目前，已经建立了离心压气机部件及水泵叶轮的优化设计系统，并在工程设计中发挥了重要作用。
According to the distribution of pressure and velocity on the 5 types of impeller , it analyses and discribes the feature of internal flow in super - low specific - speed pump impeller 通过对五种叶轮内流动的模拟比较，描述了极低比转数叶轮内流动的特点。
This thesis was supported by the projects of the study on piv measurements of the flow fields inside the pump impeller sponsored by the state nature science fund of china 本文得到了国家自然科学基金项目“水泵转轮内流场激光测量研究” ( no . 59949010 )的资助。
Before assembling , inspect whether the fasteners are tight and make sure there are no foreign bodies blocked in the runner to avoid the damage to pump impeller and casing 安装前应检查机组紧固件有无松动现象，泵体流道内有无异物堵塞，以免水泵运行时损坏叶轮和泵体。
In the second part , a few kinds of particles with different densities and sizes were picked and used to study the trajectories and the distributions inside the pump impeller 在第二部分工作中，精心选择几种不同密度、不同大小粒子，进行叶轮流道内粒子运动轨迹和粒子分布的实验研究。
It is not only used to design centrifugal pump impeller and diffuser , but also used to design non _ clogging pump impeller and diffuser , radial diffuser , space diffuser , etc 它除了可进行清水泵的叶轮、蜗壳水力设计外，还可设计无堵塞泵的叶轮、蜗壳以及径向导叶、空间导叶等水力件的水力设计。
This dissertation investigates image measurements of two - phase flow fields inside the pump impeller sponsored by the opening fund of water conservancy dynamical engineering lab of yangchou university , jiangsu province , and consists of three main parts 本论文为江苏扬州大学水利动力工程省重点实验室开放课题基金资助项目，主要工作包括三部分：一
