Effect of backward-swept blade on axial flow pump performance of anti-cavitation

In order to study the influence of backswent blade on anti-cavitation performance of axial flow pump,the standard K-e turbulence model and SIMPLE algorithm were applied to simulate the flow field in seven axial flow pumps by FLUENT software,and the volume of air bubbles and efficiency of each pump were gotten .By comparing backward-swept blade with straight blade, it can be known that both the volume of air bubbles and efficiency decrease when sweep angle is increases. So sweep angle cannot be too large when backward-swept blade is used to improve the performance of anti-cavitation.