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粒子成像测速（ＰＩＶ）技术是随高速摄影技术和计算机图像处理技术发展起来的一种速度量测技术。该文将ＰＩＶ技术应用于离心泵流道中固粒速度场的研究。开发了一套Ｗｉｎｄｏｗｓ界面的速度分析软件，分析了具有不同物理特性的橡皮泥、核桃壳和砂子等固体颗粒在流道中的运动。研究表明固粒的密度影响其在叶轮中的相对运动轨迹，固粒的粒径和形状则主要影响其运动速度大小；揭示了开式叶轮比闭式叶轮效率低、磨损快的原因是固粒受到水流泄漏的影响，其相对速度比在闭式叶轮中的大。研究结果有助于解释离心泵内磨粒磨损现象。
Particle imaging velocimetry (PIV) is a speed measurement technique developed with high-speed photography and computer image processing. In this paper, PIV technology is applied to the velocity field of solid particles in the flow field of centrifugal pump. A set of speed analysis software for Windows interface was developed to analyze the movement of solid particles such as plasticine, walnut shells and sand with different physical characteristics in the flow channel. The results show that the density of solid particles affects the relative motion of the impeller in the impeller. The particle size and shape of the solid particles mainly affect the velocity of the impeller. The reason why the open impeller has lower efficiency and faster wear than the closed impeller is that the solid particles Affected by water leakage, the relative speed is greater than in closed impellers. The results help to explain the abrasive wear in the centrifugal pump.