Vortex Measurement at Bell-Shaped Pump Inlet Using Particle Image Velocimetry

Harun, Zambri; Batcha, Muhammad Azhar Akbar; Norizan, Tajul Ariffin; Abidin, Zulkhairi Zainol; Mohtar, Wan Hanna Melini Wan

doi:10.17576/jkukm-2018-30(2)-11

Cited by 4 publications

(2 citation statements)

References 5 publications

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“…The suction end is an acrylic pipe with bell shaped inlet resembling a real submersible pump. This is an extended experiment after earlier ones which showed that the biggest reduction in swirl angle was displayed by biggest gap between the floor splitter and the inlet pipe [17][18][19].…”

Section: Methodsmentioning

confidence: 87%

Subsurface Vortex Control Parametric Study at Submersible Pump Intake Using Plate-Type Floor Splitters

Norizan

Harun

Abdullah

et al. 2020

ARFMTS

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Vortex formation near the pump inlet in the sump during intake is a phenomenon that needs to be controlled to maximize the pump efficiency. In this study, five variants of an AVD type called the plate type floor splitter are installed in a single intake pump sump model to evaluate the effect of geometry of the floor splitter on the effectiveness of vortex control in the intake flow. The acceptance criteria according to ANSI HI 9.8 2012 standard are that the vortex formed in the sump must be eliminated and the swirl angle in the flow must not exceed 5°. The submergence of the inlet was varied to observe the swirl reduction effect at different water levels. All floor splitter variants employed in this study have successfully eliminated the vortex but most of them did not manage to reduce the swirl angle below 5° as required. The variants with different heights displayed significant differences in swirl angle values with higher variants produce greater swirl angle reduction. The highest floor splitter variant managed to produce a swirl angle reduction below 5°. With varying lengths, however, the swirl angle values did not differ much in each case with the installation of the floor splitter variants. The advantage of the long floor splitter is that the fluctuation of swirl angle values is minimum for all submergence depths greater than 0.9 times the minimum inlet submergence which implies that the swirl reduction effect is less affected by the change in water level. By combining the advantages of both floor splitter design variation, the optimal design of plate type floor splitter can be achieved.

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Section: Methodsmentioning

confidence: 87%

Subsurface Vortex Control Parametric Study at Submersible Pump Intake Using Plate-Type Floor Splitters

Norizan

Harun

Abdullah

et al. 2020

ARFMTS

Self Cite

View full text Add to dashboard Cite

show abstract

“…Typically, vortex formation is studied with experimental rigs during the design stage or during the evaluation of the anti-vortex device (AVD) design. These were highlighted in a number of previous works [1][2][3][4][5]. Sump dimension or approach flow condition is optimized to minimize or eliminate the chances for adverse flow patterns that could result in vortex formation.…”

Section: Introductionmentioning

confidence: 99%

Application of Polyhedral Mesh for Vortex Formation Study for Simple Single Pump Sump

Samsudin¹,

Hasini

2021

CFDL

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Meshing of domain in CFD is an important step to ensure accuracy of the solution. In the past, hexahedral or tetrahedral mesh systems were commonly used, and both have their merits and demerits. For large and complex geometry, polyhedral is another option but its accuracy is claimed to be lacking. In this paper, the use of polyhedral mesh system by past researchers are reviewed. Evaluation on the application of polyhedral mesh system for the study of the vortex formation with a simple single pump sump model is made. Validation was made through the comparison of the results from hexahedral, tetrahedral and polyhedral mesh sizes and the experimental data from published data. The polyhedral mesh system was found to perform satisfactorily and was able to match the results from the hexahedral mesh system as well as the experimental data.

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Numerical and experimental study on the hydraulic characteristics of a vertical axial pump under various clearances of flare tube

Chen

et al. 2023

J Hydrodyn

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Vortex Measurement at Bell-Shaped Pump Inlet Using Particle Image Velocimetry

Cited by 4 publications

References 5 publications

Subsurface Vortex Control Parametric Study at Submersible Pump Intake Using Plate-Type Floor Splitters

Subsurface Vortex Control Parametric Study at Submersible Pump Intake Using Plate-Type Floor Splitters

Application of Polyhedral Mesh for Vortex Formation Study for Simple Single Pump Sump

Numerical and experimental study on the hydraulic characteristics of a vertical axial pump under various clearances of flare tube

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