We present preliminary results from numerical simulations of blood flow in a prototype of a centrifugal pump. The simulations involve incompressible Navier-Stokes governing equations, stabilized space-time finite element formulations, and parallel implementation on distributed memory architectures. The examples illustrate our approach of custom hybrid structured-unstructured tetrahedral meshes,...

This paper presents simulation and bench test results for a special type of centrifugal pump that enables the transport dispersive foaming liquids simultaneous separation liquid phase. During design phase, CFD (Computer Fluid Dynamics) simulations were performed using Ansys Fluent. The covered changing operating parameters (mass/volume flow rate), pressure analysis first impeller, structural op...

Centrifugal pump is an instrument that widely used in industry and has become the main driving component. A detection system often needed to prevent damage these pumps because they can interfere with overall performance. Therefore, this study discussed development of a fault for two centrifugal units, namely Medium Pressure Oil Pump (MPOP) Water Injection (WIP). In detecting operating condition...

The impeller of a centrifugal pump plays an important role because it determining the flow rate and efficiency pump. is determined by design design. Under filing one method for removing material from underside vane at exit. also increases head. involves having blade height that lower than nominal diameter, which can lead to reduced power consumption, improved characteristics, decreased noise vi...

Unsteady forces generated by fluid flow through the impeller shroud leakage path of a centrifugal pump were investigated. The effect of leakage path inlet swirl (pump discharge swirl) on the rotordynamic forces was re-examined. It was observed that increasing the inlet swirl is destabilizing both for normal and tangential rotordynamic forces. Attempts to reduce the swirl within the leakage path...

A study of a small centrifugal blood pump has been made to address the effectiveness of traditional pump affinity laws and the influence that viscous effects, as characterized by the Reynolds number, have on the pump performance. This was investigated both experimentally and numerically on models of a small implantable centrifugal blood pump, which has an impeller diameter of 46 mm with a log s...

A non-uniform inflow caused by an elbow structure is one of the main reasons for low energy transformation efficiency a centrifugal pump. Prototype experiments pump are used to analyze rule characteristics under uniform and inflow. The increases hydraulic losses in reduce head operation efficiency. decreases 8% design flow condition. large eddy simulation with shear-modified viscosity model app...

The optimization of radial guide vane structure is the key measure to reduce hydraulic loss component. research model for this paper a multistage centrifugal pump with vane. Based on SST k–ω turbulence and using CFD numerical simulation technology imitate forecast performance. influences blade numbers return circumferential distribution position transportability are studied. internal fluidity c...

A new simplified mathematical model for a switched reluctance motor (SRM) driving a centrifugal pump was developed and experimentally validated. The simplified mathematical model was suitable to simulate the performance of the SRM–pump system and to design its controller. The new simplified model was determined based on the assumption that the SRM phase inductance profiles have triangular wavef...