Investigation of CFD Based Flow Analysis of Centrifugal Pump

In order to utilize the available ground water below 120 m head, it requires efficient bore hole multistage submersible pumps. Due to its limitation in the diameter, the number of stages required is very high for high head application. This leads to more number of moving parts in the pump and the corresponding efficiency of the pump is low. Size of the motor and active material can be reduced by 50% for the same rating. Number of stages can be reduced to single stage or to a fewer stage depending upon the head requirements.The overall system efficiency can be increased to an attractive level for high head and varying yield conditions. The aim of this project is to design and analyze a single stage high-speed submersible pump. The main feature of this pump is that it is smaller,compact, lightweight, single stage and high speed. The first stage of this project is centered on the evaluation of design parameters like specific speed, vane angle, width of impeller, diameter of shaft, number of vanes for impeller as well as diffuser using the given input conditions. Though several methods are available for designing the impeller and the diffuser, Stephan lazarkiewies method is employed in this project