As the demand for energy consumption saving and emission reduction become an urgent
need in the contemporary world, the requirements for pumps and turbines need to pay more …

Energy consumption around the world is growing at an alarming rate. That brings enormous
pressure on energy production and environmental issues. Nowadays, energy efficiency …

Flow losses in common vanned pumps such as centrifugal pumps have been widely
studied, while less research attention has been paid to side channel pumps that are …

In order to investigate the influence of tip clearance size on the characteristics of mixed-flow
pump under stall conditions, the entropy production analysis method is utilized to visualize …

Multi-stage centrifugal pumps are frequently used in high-lift applications and consume
considerable energy, but suffer from poor performance and large axial force. The rear …

To investigate the internal flow structures and the emanating pressure pulsations in a
centrifugal pump with a vaned diffuser, the numerical method DDES (delayed detached …

It is of great significance to rapidly and accurately predict the energy performance of
centrifugal pumps for the macro-control of the entire electric power system. However, some …

A grid-connected integrated system incorporating cascade hydropower, solar/photovoltaic,
and wind power requires a hydraulic turbine to operate frequently under off-design …

In this work, the unsteady Reynolds-averaged Navier–Stokes (URANS) and three hybrid
Reynolds-averaged Navier–Stokes-large eddy simulation (RANS-LES) models are …

The unsteady flow characteristics of the low-head bulb tubular pump highly affects the
operation efficiency and stability of the whole system. The purpose of this paper is to …