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International Journal of Rotating Machinery
Volume 2010, Article ID 706043, 12 pages
Research Article

Numerical Investigation of Velocity Flow Field inside an Impeller Air Model of a Centrifugal Pump with Vaned Diffuser Interactions and Comparison with PIV Measurements

1Laboratory of Advanced Mechanics, FGMGP/USTHB, BP32 El Alia, Alger 16111, Algeria
2Laboratory of Mechanics of Lille, ENSAM-Lille, 8 Building Louis XIV, 59046 Lille, France

Received 7 July 2010; Accepted 30 October 2010

Academic Editor: E. Y. K. Ng

Copyright © 2010 Abdelmadjid Atif et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The paper refers to the analysis of interactions between the impeller and the vaned diffuser on the air model of a radial flow pump. The study deals with a numerical simulation of the flow for a full 360° entire impeller and diffuser. The task is carried out close to design operating conditions and for one particular position of the impeller blade with respect to diffuser frame. Among all the results, it has been decided to mainly focus on the flow pattern at the exit part inside the impeller coming from the diffuser vanes interactions. The results are compared to the available PIV measurements.