Hydropower is not only a renewable and sustainable energy source, but its flexibility and
storage capacity also makes it possible to improve grid stability and to support the …

Intermittent renewable energy sources are characterized by a highly fluctuating,
unpredictable and delocalized energy production, which significantly limits their penetration …

Cavitation and vibration are crucial characteristics in pumps, which directly contribute to the
safe and stable operation of pumps. Cavitation and vibration are both complicated …

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

Turbulent flow generated by the intense rotor–stator interaction is detrimental to the safe
running of the centrifugal pump. In order to gain more insight into unsteady velocity pulsation …

Rotor–stator interaction, a major source of high amplitude pressure pulsation and flow-
induced vibration in the centrifugal pump, is detrimental to stable operation of pumps. In the …

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 …

The most common mechanical equipment adopted in the new generation of pumped-hydro
power plants is represented by reversible pump-turbines (RPT), required to rapidly switch …

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 …

Cavitation is a challenging flow abnormality that leads to undesirable effects on the energy
performance of the centrifugal pump and the reliable operation of the pump system. The …