Influence of Blade Wrap Angle on the Hydrodynamic Radial Force of Single Blade Centrifugal Pump

To investigate the effect of blade wrap angle on hydrodynamic radial force a single centrifugal pump, numerical simulation is conducted pumps with different angles. The external characteristics and pump was analyzed according to result. It found that, increase angle, head efficiency are improved, H-Q curve becomes steeper, also increased gradually, while high-efficiency area narrowed. has great pump. When less than 360°, horizontal component negative value reduced blade. larger positive increases angle. Under part-loading conditions, significantly smaller decreases flow rate increase. In condition that