[2] [2] ZHANG H,SHI W D,CHEN B,et al.Experimental study of flow field in interference area between impeller and guide vane of axial flow pump$$J$$. Journal of Hydrodynamics, 2014,26(6): 894-901.

[6] [6] LIU H L,WANG K,YUAN S Q,et al.3D particle image velocimetry test of inner flow in a double blade pump impeller［J］.Chinese Journal of Mechanical Engineering,2012,25(3):491-497.

[11] [11] WESTRA R W,BROERSMA L,VAN ANDEL K,et al.PIV measurements and CFD computations of secondary flow in a centrifugal pump impeller［J］.Journal of Fluids Engineering,2010,132(6):061104-061111.