Table of Contents
ISRN Mechanical Engineering
Volume 2011 (2011), Article ID 794341, 16 pages
http://dx.doi.org/10.5402/2011/794341
Research Article

Numerical Identification of Key Design Parameters Enhancing the Centrifugal Pump Performance: Impeller, Impeller-Volute, and Impeller-Diffuser

Department of Applied Sciences, University of Quebec in Abitibi-Témiscamingue, 445 Boulevard de l'Université, Rouyn-Noranda, QC, Canada J9X 5E4

Received 8 July 2011; Accepted 11 August 2011

Academic Editors: S. W. Chang, A. M. Sadegh, and S. C. M. Yu

Copyright © 2011 Massinissa Djerroud 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.

Abstract

This paper presents the numerical investigation of the effects that the pertinent design parameters, including the blade height, the blade number, the outlet blade angle, the blade width, and the impeller diameter, have on the steady state liquid flow in a three-dimensional centrifugal pump. Three cases were considered for this study: impeller, combined impeller and volute, and combined impeller and diffuser. The continuity and Navier-Stokes equations with the k-ε turbulence model and the standard wall functions were used by means of ANSYS-CFX code. The results achieved reveal that the selected key design parameters have an impact on the centrifugal pump performance describing the pump head, the brake horsepower, and the overall efficiency. To valid the developed approach, the results of numerical simulation were compared with the experimental results considering the case of combined impeller and diffuser.