Application of slotted blade in the improvement of turbomachinery performance

Flow separation is ubiquitous in turbomachinery. Compared with the more mature turbomachinery flow control method where medium gas, liquid cannot be controlled well. In this study, according to principle of aircraft fowler flap, taking stator blade hydraulic torque converter as basic research object, shape fitted Joukowsky transformation, and then it slotted. Computational fluid dynamics used perform analysis on original blades slotted blades. It found that compared blade, blade’s phenomenon effectively suppressed, turbulent kinetic energy reduced, stable, loss reduced. addition, using for simulation, ratio increased by up 0.245, efficiency 5%, which shows can improve mechanical performance pump wheel are not limited converter.