Over the past decade, the use of conventional one-dimensional numerical-simulation
methods has been demonstrated to be inadequate in terms of their usefulness in …

Propellers, pumps, and turbines are widely applied in marine equipment, water systems,
and hydropower stations. With the increasing demand for energy conservation and …

In a mixed-flow pump, the energy performance curve always appears as an unsteady region
under rotating stall condition. In this paper, computational fluid dynamics (CFD) technology …

In order to investigate the effect of impeller tip clearance on the internal flow fields and the
hydraulic losses in mixed-flow pump, the entropy production method with computational fluid …

The present work investigates the pressure fluctuation intensity and vortex characteristic of a
mixed flow pump as turbine at pump mode with a tip clearance. The tip clearance between …

Pump as Turbine (PAT) is an effective alternative of power generation for small hydropower
system. Since the characteristic curves under turbine mode are not supplied by …

Transient cavitating flows of a mixedflow PAT (pump as turbine) at pump mode are
investigated experimentally and numerically. Radial force on principal axis is recorded and …

In order to further enrich the theory of rotational stall, this paper explored the mechanism of
internal energy loss in the mixed-flow pump under stall condition based on the shear stress …

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 …

The aim of this work is to investigate the unsteady characteristics of tip leakage vortex (TLV)
structure in an axial flow pump experimentally and numerically. Experiments were carried …