A study on velocity profile in pump impeller and its casing

Abstract

This project is to study velocity profile in pump impeller and its casing using numerical simulations in commercial software COSMOSFloWorks. The pump has different number of blades of impeller and a circular casing. The numerical simulations are carried out with a multiple frame of reference to predict the velocity distribution around the pump impeller and the casing. The impeller is solved in a rotating frame and the casing is solved in a stationary frame. This study also shows that the number of blades in impeller, flowrate and the impeller speed give a great influence in velocity distribution in pump. The turbulence model used in this study is standard k − ε Turbulence Model. The velocity distribution is observed by varying the impeller speed and the flowrate for every number of blades in impeller.