Characteristics Analysis of the Flow Field of Self Balanced Multi-stage Centrifugal Pump

The flow field characteristics of self balanced multi-stage centrifugal pump were analyzed based on FLUENT. Reynolds-averaged Navier-Stokes equations and standard k-epsilon model are adopted to calculate the pressure and velocity distribution of the flow field in the impeller and the guide vane under three different conditions. The results showed that the trend of head and efficiency calculated from the simulation is in agreement with the experimental values, and there is not much difference in the flow field distribution between the first stage and the fourth stage impeller and the guide vane. Thus, the found of this paper has certain guiding significance for the design and optimization of self balanced multi-stage centrifugal pump.