Effects of impeller trimming influencing pump as turbine

Yang, Sun-Sheng; Kong, Fankai; Jiang, Wei; Qu, Xiaoyun

doi:10.1016/j.compfluid.2012.07.009

Cited by 101 publications

(36 citation statements)

References 8 publications

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“…For the pump studied, ten blades presented better results. Yang et al (2012) used CFD technology to explore the reasons for performance variation on pump as turbine (PAT) when the impeller diameter is trimmed. Wang et al (2017) studied a special impeller used on pump as turbine (PAT).…”

Section: Introductionmentioning

confidence: 99%

CFD simulation on centrifugal pump impeller with splitter blades

Rosa

Emerick

2020

Rev. bras. eng. agríc. ambient.

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The present paper aims to present the analysis and comparison of results of computational simulations using Computational Fluids Dynamics (CFD) in impellers of centrifugal pump. Three impellers were simulated: 1) original impeller, 2) original impeller with splitter blades at outlet; 3) original impeller with splitter blades at inlet. The splitters occupied 30% of the length of the main blades. They were simulated using the ANSYS-CFX software system in 1500 rpm rotational speed and at different flow rates. The turbulence model assumed was the Shear Stress Transport (SST). The results were used to build impeller blade head curves, besides the presentation of pressure distribution and streamline behaviour inside the impeller. It was verified that the insertion of the splitter blades reduced the impeller blade head, mainly the impeller with outlet splitter, whose reduction was more intense.

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Section: Introductionmentioning

confidence: 99%

CFD simulation on centrifugal pump impeller with splitter blades

Rosa

Emerick

2020

Rev. bras. eng. agríc. ambient.

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“…Singh et al in [29], or when the PAT impeller diameter is cut down by Yang et al in [30] or when the PAT guide vane installation pattern is altered by Patel et al in [31]. These fruitful outcomes suggest CFD methods have increasingly become an important tool for investigation into PAT.…”

Section: Introductionmentioning

confidence: 99%

Effects of viscosity on turbine mode performance and flow of a low specific speed centrifugal pump

2016

Applied Mathematical Modelling

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“…[16][17][18][19] This is because there is axial eddy in the centripetal impeller, and when centrifugal pump reversal occurs, positive curvature blade strengthens the velocity gradient of vertical direction of channel. This leads to the emergence of eddy.…”

Section: Relative Velocity Within the Centripetal Impeller Under The mentioning

confidence: 99%

Theoretical research of hydraulic turbine performance based on slip factor within centripetal impeller

Shi

Liu

Yang

et al. 2015

Advances in Mechanical Engineering

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The impeller of hydraulic turbine is a kind of centripetal impeller. The slip phenomenon within centripetal impeller is different with centrifugal impeller. In this study, the velocity distribution and the flow form of fluid within centripetal impeller are analyzed, the slip factor within centripetal impeller is calculated, and the basic energy equation of hydraulic turbine is deduced when the slip within centripetal impeller is considered. The results of theoretical calculation, the results of experiment, and the results of computational fluid dynamics calculation are compared. The formula of slip factor within centripetal impeller is obtained, and the relative error between the results of theoretical calculation using the formula and experimental data is less than 5%. The effect factors of slip factor have entrance diameter of centripetal impeller, blade numbers, entrance and outlet blade angles, rotating speed of centripetal impeller, and flow rate.

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Effects of impeller trimming influencing pump as turbine

Cited by 101 publications

References 8 publications

CFD simulation on centrifugal pump impeller with splitter blades

CFD simulation on centrifugal pump impeller with splitter blades

Effects of viscosity on turbine mode performance and flow of a low specific speed centrifugal pump

Theoretical research of hydraulic turbine performance based on slip factor within centripetal impeller

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