Abstract Cavitation is a phenomenon that occurs easily during rotation of fluid machinery and can decrease the performance pump, thereby resulting in damage to flow passage components. To study influence wall roughness on cavitation centrifugal three-dimensional model internal field pump was constructed numerical simulation conducted with ANSYS CFX software based Reynolds normalization group k ...

This paper describes the related research work in field of fluid-induced vibration centrifugal pumps conducted by many researchers. In recent years, all walks life have put forward higher demands for performance which drives investigation on root cause pump and development guidelines design low-vibration pumps. Fluid-induced excitation is most important significant source vibration. Understandi...

Electrical failure during cardiopulmonary bypass (CPB) has previously been reported to occur in 1 of every 1500 cases. Most heart-lung machine pump consoles are equipped with built-in battery back-up units. Battery run times of these devices are variable and have not been reported. Different conditions of use can extend battery life in the event of electrical failure. This study was designed to...

In the present work, effects of modifying tongue geometry a centrifugal pump on pressure pulsations under design and off-design conditions are carried out numerically by unsteady analysis fluid flow. Numerical modeling based Re-Normalization Group (RNG) k-ε turbulence model using Mosaic mesh structure, technology which can easily, quickly formally connects any type for complex geometries flow r...