Determination of pump performance using numerical modelling

Abstract

This paper deals with the numerical modelling of the flow in the single-stage centrifugal pump. The main objective is to determine pump performance characteristics using two different geometries – the first one consisting only of the inlet part, impeller and volute, the second one including also the impeller casing, i.e. the gaps on both sides of the impeller. Both stationary and time dependent problems were solved to obtain data for comparison with experimental measurement. The influence of geometry reduction was evaluated and advantages and limitations of both approaches were depicted.