In this study, Computational Fluid Dynamics (CFD) Analysis is used to investigate the flow in the centrifugal pump impeller using the ANSYS-CFX. Impeller is designed for head of Keywords CFD, vertical pump, head, impeller, volute casing IntroductionPump is designed as per API 610 standards. Modelling of impeller, volute geometry and all pump components is done in software CREO 3.0 by assuming the required duty parameters. Double suction impeller is designed to meet required head and flow at operating speed. Double volute casing is used to transfer fluid from inlet to outlet pipe.Nowadays the use of CFD plays an important role in fluid mechanics. Due to the progress in computer capability and numerical methods, the design analysis of centrifugal pumps by using 3D-Navier stokes program or CFD software has become easy. The impeller could be redesigned if the final result from the CFD differs from the designed value [1].Number of researchers has studied the application of CFD in fluid mechanics and turbo machinery over the years [1][2][3][4][5][6][7]. However, there are few researchers used this CFD tool to predict the performance of pump impeller. Until now, there have been only three works carried out by Rajendran and Purushothaman
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