Centrifugal pumps are probably among the most often used machinery in industrial facilities as well as in common life. After being invented they passed long evolutionary development until they became accessible for various applications. Centrifugal pump design is well facilitated by the use of Computational Fluid Dynamics (CFD). But still some problems are arising to improve the pump performance. This improvement can be achieved by making geometrical changes in design of an impeller. In this study, different techniques for improving centrifugal pump performance by changing impeller geometry are discussed.
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