Hydraulic machinery plays a pivotal role in various fields, and they usually operate with
complex flow phenomena that may significantly affect its performance and stability. The …

Unsteady pressure-pulsation-induced severe vibration and high alternating stress can
cause some unexpected results, including impeller crack and structural damage of the entire …

Considering the computing accuracy and resources of numerical calculation, a hybrid
Reynolds-averaged Navier–Stokes/large-eddy simulations method based on the von …

Identifying the precise location of flow energy dissipation (FED) in pump turbines is crucial
for enhancing the stability of pumped storage power stations. In this study, the transient …

The dynamic behavior of a reversible pump turbine (RPT) during the load rejection process
was investigated through numerical simulation and experimental testing. The study focused …

Pressure fluctuation is the primary reason for unstable operations of double-suction
centrifugal pumps. By using flush mounted pressure transducers in the semispiral suction …

A pumped storage power station is an electric power system that utilizes low-peak electricity
to pump water into a high-altitude reservoir and releases water to generate electricity during …

With fossil fuel depletion and rising demand for renewable energy, reversible pump turbines
(RPTs) are crucial for balancing energy supply. Understanding the dynamics of RPTs during …

The unsteady phenomena of a low specific speed pump–turbine operating in pump mode
were characterized by dynamic pressure measurements and high-speed flow visualization …

An unsteady numerical analysis has been conducted to study the strong interaction between
impeller blade and volute tongue of a centrifugal pump. The 3-D-URANS equations were …