PIV measurement on internal instantaneous flows of a centrifugal pump

作     者：WU YuLin LIU ShuHong YUAN HuiJing SHAO Jie 

作者机构：State Key Laboratory of Hydro Science and Hydraulic Engineering Department of Thermal Engineering Tsinghua University Beijing 100084 China State Key Laboratory for Turbulence and Complex Systems College of Engineering Peking University Belting 100871 China 

出 版 物：《Science China(Technological Sciences)》 (中国科学（技术科学英文版）)

年 卷 期：2011年第54卷第2期

页      面：270-276页

核心收录：

学科分类：080704[工学-流体机械及工程] 07[理学] 08[工学] 070602[理学-大气物理学与大气环境] 0807[工学-动力工程及工程热物理] 0706[理学-大气科学] 

基　　金：supported by the National Natural Science Foundation of China(Grant No.10532010) 

主　　题：pump PIV laser induced fluorescence refractive index matched 

摘      要：In this paper,the internal flow field in a centrifugal pump working at the design flow rate operating condition has been measured using the particle image velocimetry(PIV)technique with the fluorescent particles and the index-matched fluid *** index-marching fluid with the same refractive index as the transparent material has been prepared and applied in the present test of pump with geometrical complex *** comparison between velocity distributions of PIV results both with and without fluorescent particles,as well as with and without index-marching fluid are conducted to find the *** DES(Detached Eddy Simulation)has been employed to calculate the three-dimensional unsteady turbulent flow in the pump to examine and to certify the PIV measurement *** DES results of instantaneous flow velocity fields agree with PIV test results with fluorescent particles and index-marching *** is necessary to perform the PIV measurement of pumps with fluorescent seeds and index-marching fluid in order to get exact *** experimental results show the distributions of velocity,steamlines,and the principal Reynolds normal stress(PRNS)and the principal Reynolds shear stress(PRSS).