Numerical Simulation of Interior Flow Field in Axial Pump Impeller

In order to enhance design accuracy and performance of axial pump impeller, a three dimensional viscous flow impeller is simulated based on time averaged Navier-stokes equations,standard k-e turbulence model and SIMPLEC algorithm by CFD numerical simulation software-FINE.The relative total pressure distribution and velocity vector distribution in the impeller are obtained, the flow field distribution pattern in the impeller is analyzed, and the interaction between clearance flow on blade tip and impeller flow field is revealed. It is helpful for designers in understanding the exact flow phenomena in the impeller and providing visualization data support for the design.