alexa Effect of Blade Angle on Cavitation Phenomenon in Axial Pump
ISSN: 2168-9873

Journal of Applied Mechanical Engineering
Open Access

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Research Article

Effect of Blade Angle on Cavitation Phenomenon in Axial Pump

Nabil H. Mostafa and Mohamed Adel*
Engineering Faculty, Mechanical Power Engineering Department, Zagazig University, Zagazig, 44519, Egypt
Corresponding Author : Mohamed Adel
Engineering Faculty, Mechanical Power Engineering Department
Zagazig University, Zagazig, 44519, Egypt
E-mail: [email protected], [email protected]
Received July 24, 2012; Accepted September 12, 2012; Published September 14, 2012
Citation: Mostafa NH, Adel M (2012) Effect of Blade Angle on Cavitation Phenomenon in Axial Pump. J Appl Mech Eng 1:112. doi:10.4172/2168-9873.1000112
Copyright: © 2012 Mostafa NH, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
 

Abstract

The objective of this paper is to present 3-D numerical and experimental study of the effect of blade angle on the cavitation phenomenon. The numerical computation in cavitating flow carried out using the Navier-Stokes code (CFD-ACE+ 2008) is presented. The governing equations are discretized on a structured grid using an upwind difference scheme. The numerical simulation used the standard K-ε turbulence model to account for the turbulence effect. Pressure distribution and vapor volume fraction were obtained numerically at variable blade angles. Also the performance curve of the axial pump was obtained at variable blade angles 10°, 20° and 30°. The numerical and experimental results showed that the cavitation phenomenon appeared at blade angle 30° only. The computational code has been validated by comparing the predicted numerical results with the experimental ones. Besides, the predicted void growth and cavitation distribution on the impeller blade agreed with those visualized with high speed camera.

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