The inner flow field of modified Perspex impeller of a centrifugal pump was measured by advanced PIV system, and the absolute speed vectorgraph and original data of the axial eddy were acquired.

• 摘要采用先进的粒子图像测速(PIV)系统对普通叶轮改型设计后的有机玻璃叶轮内部流场进行无接触测量，获得轴向旋涡流绝对速度矢量图及原始数据。