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Mechanism and propagation characteristics of rotating stall in a mixed-flow pump
In order to explore mechanism and propagation characteristics of rotating stall, the unsteady
flow characteristics of a mixed-flow pump are calculated based on SST turbulence model …
flow characteristics of a mixed-flow pump are calculated based on SST turbulence model …
Numerical study of the energy loss in the bulb tubular pump system focusing on the off-design conditions based on combined energy analysis methods
The unsteady flow characteristics of the low-head bulb tubular pump highly affects the
operation efficiency and stability of the whole system. The purpose of this paper is to …
operation efficiency and stability of the whole system. The purpose of this paper is to …
Numerical investigations of the energy performance and pressure fluctuations for a waterjet pump in a non-uniform inflow
As a way of exploitation and utilization of ocean energy, the waterjet pump is used in a wide
range of high-speed marine vessels over 30 knot. This paper aims to investigate the …
range of high-speed marine vessels over 30 knot. This paper aims to investigate the …
Investigation on hydraulic loss component and distribution in hydraulic machinery: A case study of pump-turbine in pump mode
The sudden increase of hydraulic loss in hydraulic machinery and the attendant unsteady
flow characteristics like rotating stall and secondary flow seriously threaten the security and …
flow characteristics like rotating stall and secondary flow seriously threaten the security and …
Investigation on the relationship between hydraulic loss and vortex evolution in pump mode of a pump-turbine
Hydraulic loss and vorticity are two most common methods in analyzing the flow
characteristics in hydro-machine, ie, centrifugal pump, Francis turbine, etc. While the …
characteristics in hydro-machine, ie, centrifugal pump, Francis turbine, etc. While the …
Investigation on the unstable flow characteristic and its alleviation methods by modifying the impeller blade tailing edge in a centrifugal pump
W Ye, B Zhuang, Y Wei, X Luo, H Wang - Journal of Energy Storage, 2024 - Elsevier
In the field of the pumped storage plants, the unstable flow is universally caused by the
rotating stall in the hydro-energy machinery, which further deteriorates the performance …
rotating stall in the hydro-energy machinery, which further deteriorates the performance …
Influence of guide vane profile on the flow energy dissipation in a reversible pump-turbine at pump mode
Z Lu, R **ao, R Tao, P Li, W Liu - Journal of Energy Storage, 2022 - Elsevier
Pumped storage hydro (PSH) is a mature and widely used energy storage technique. The
hydraulic dissipation of PSH will lead to the decline of power station efficiency. Therefore, it …
hydraulic dissipation of PSH will lead to the decline of power station efficiency. Therefore, it …
Unsteady numerical investigations of the effect of guide vane openings on the hydrodynamic characteristics under stall conditions in a pump-turbine pump mode
The stall is extremely prone to surge of hydraulic loss, excessive pressure fluctuation and
radial force of the pump-turbine in pump mode. These can pose a great threat to the safety …
radial force of the pump-turbine in pump mode. These can pose a great threat to the safety …
Cavitation effects on pressure fluctuation in pump-turbine hump region
The hump characteristic is one of unique instability issues of pump-turbines, which limits the
stable and sable range of pumped storage power units. Recent studies show that the hump …
stable and sable range of pumped storage power units. Recent studies show that the hump …
Energy loss analysis of the double-suction centrifugal pump under different flow rates based on entropy production theory
H Guan, W Jiang, J Yang, Y Wang… - Proceedings of the …, 2020 - journals.sagepub.com
The investigation of energy loss of pump is of great significance for energy conservation and
structural optimization design. And traditional methods have great limitations in researching …
structural optimization design. And traditional methods have great limitations in researching …