The energy-conversion stability of hydropower is critical to satisfy the growing demand for
electricity. In low-head hydropower plants, a gravitational surface vortex is easily generated …

The multiphase free sink vortex (MFSV) has frequently appeared in practical industry
processes, including the refinement of steel stream, hydroelectric energy conversion of the …

Following the retrofit of the pump sump, there is a high risk of inducing the Combined
Submerged Vortex (CSV), which consists of the roof-attached vortex (RAV) and floor …

Free surface vortex (FSV) is a complex gas-liquid two-phase flow, which is harmful to the
pump unit. In this paper, FSV in the pump sump with a double-suction centrifugal pump is …

FAV in pump sump has been a matter of focus for years for the major effects on the efficiency
of the pump, wasting a lot of energy. In order to explore the mechanism of the dynamic …

In this paper, the simple coupled level-set and volume of fluid and bifurcation models are
used for the accurate prediction of the flow in an open pump intake with a vertical pipe. The …

Abstract The Roof-attached Vortex (RAV), Floor-attached Vortex (FAV) and Combined
Submerged Vortices (CSV) induced by the closed sump of a tidal pum** station have …

The occurrence of the free surface vortex is inherent to numerous physical situations and
may result in the entrainment of air which is detrimental for many engineering processes and …

The roof-attached vortices (RAVs), floor-attached vortices (FAVs), and complex combined
submerged vortices (CSVs) excited in a closed pump sump will induce irregular pressure …

Air-entrainment is a negative phenomenon in hydraulic intakes with a vertical pipe.
Researchers sometimes chose to offset the pipe from the intake center to trigger the air …