This paper mainly summarizes the recent progresses for the cavitation study in the hydraulic
machinery including turbo-pumps, hydro turbines, etc.. Especially, the newly developed …

Applications of computational fluid dynamic (CFD) techniques to hydropower have
increased rapidly in the last three decades. The majority of the experimental investigations …

Francis turbine working at off-design operating condition experiences high swirling flow at
the runner outlet. In the present study, a high head model Francis turbine was …

Abstract Rotating Vortex Rope (RVR) has been a matter of focus for years due to the major
effects on hydraulic turbine's efficiency. The exact procedure of RVR formation is still vague …

The runaway after pump-trip is a fast transient process, during which unit vibrations, water-
hammer fluctuations, pressure pulsation changes and flow pattern transitions happen …

Centrifugal pumps are widely applied in engineering practices. Power failure occurs
occasionally and consequently the flow field inside the pump is extremely complex. Pump …

The synchronous pressure surge effect is a critical phenomenon occurring in Francis
turbines operating at part load conditions. In this regime, pressure fluctuations are …

Precessing vortex rope (PVR) plays a key role in inducing hydraulic resonance in Francis
turbines operating at partial load, possibly degrading power plant stability and availability …

This paper presents the development and validation of a new partially-averaged Navier–
Stokes (PANS) model which can successfully predict turbulent swirling flow with vortex …

The vibration problem of hydraulic generating unit and plant structures in hydropower station
influenced mainly by pressure fluctuation of draft tube and other factors during the transient …