Abstract: The hydraulic performance of centrifugal oil pumps can be illustrated by using three curves: head-flow rate, power-flow rate and efficiency-flow rate. Figure 1 shows the performance curves of ...

Abstract: The two-step method for optimizing net positive suction head required (NPSHr) of axial-flow pumps is proposed in this paper. First, the NPSHr at the impeller tip is optimized with impeller ...

Abstract: The clearance of wear-rings in the impeller of centrifugal pumps has an important influence on the pump’s performance. Unfortunately, this effect has not been quite well documented, especially ...

Abstract: In the inducer hydraulic design, one significantly important task is to estimate its noncavtating head; however, there is not a matured and reliable method for this presently. In this paper, ...