The effect of front streamline wrapping angle variation in a super-low specific speed centrifugal pump

Li, Dong; Zhao, Yun‐Bo; Liu, Houlin; Dai, Caili; Gradov, Dmitry Vladimirovich; Wang, Yong

doi:10.1177/0954406218772605

Cited by 7 publications

(1 citation statement)

References 16 publications

(17 reference statements)

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“…Their low-speed design allows them to perform exceptionally well in scenarios involving high-viscosity liquids and media containing particulate matter and in applications requiring significant head. A low-specific-speed centrifugal pump has the characteristics of a low flow rate, high head, and a compact structure [7,8]. Compared to high-speed centrifugal pumps, low-speed centrifugal pumps are more suitable for the transportation of certain special media.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Stress–Strain Characteristics and Signal Coherence of Low-Specific-Speed Impeller Based on Fluid–Structure Interaction

Qiao,

Sun,

Zhu

et al. 2023

JMSE

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In this study, an analysis of a low-specific-speed pump is carried out based on the methods of one-way and two-way fluid–structure interactions (FSIs). This study analyzes the influence of FSIs on the internal flow field and external characteristics of the pump. Utilizing a two-way FSI, the signal coherence analysis method is employed to analyze the coherence of signals between the flow field and the structural field. Addressing the issue of a lack of a connection between the two signals, this study bridges a gap in the existing research. The results indicate that different interaction methods have certain influences on impeller stress and deformation. However, in both coupling modes, the maximum deformation and the maximum equivalent stress have the same distribution position. The head error obtained using the two-way coupling method is lower than that of the uncoupled results, which indicates that the two-way FSI calculation results are closer to the experimental results. The pressure pulsation signals at the interface of the impeller and volute exhibit strong coherence with the structural field signals. For low-specific-speed centrifugal pumps, establishing a clear connection between the flow field signals and structural field signals will help guide further optimization of their performance through design.

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Section: Introductionmentioning

confidence: 99%

Analysis of Stress–Strain Characteristics and Signal Coherence of Low-Specific-Speed Impeller Based on Fluid–Structure Interaction

Qiao,

Sun,

Zhu

et al. 2023

JMSE

View full text Add to dashboard Cite

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Study on Noise Characteristics of Marine Centrifugal Pump Under Different Cavitation Stages

Dai

et al. 2021

Iran J Sci Technol Trans Mech Eng

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Influence of Blade Profiles on Plastic Centrifugal Pump Performance

Zhang

Tang

Zhao

2020

Advances in Materials Science and Engineering

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To study the influence of blade profiles of the plastic centrifugal pump on pump performance, the impeller blade profiles were designed and drawn by the single arc method, double arc method, logarithmic spiral method, and B-spline curve method, respectively, with the known structural parameters.The shape and size of four profiles were drawn, and two-dimensional models and three-dimensional models of four impellers and volute were completed, respectively. The impeller models were printed by 3D printing technology, and the performance experiments of the plastic centrifugal pump were carried out. The numerical simulation of the internal flow field was performed. From the contours of the velocity and pressure, the vapor volume fraction distribution, and fluid-structure interaction analysis of impellers, the impeller drawn by the logarithmic spiral method was better than others. The optimization of the logarithmic spiral method was completed. The impeller inlet and outlet diameters (D1 and D2) and impeller inlet and outlet installation angles (β1 and β2) were taken as control variables, and the total power loss and the minimum NPSHr of the pump were taken as the objective functions. The optimization results were that D1 = 58 mm and D2 = 162 mm and β1 = 17° and β2 = 31°. The hydraulic efficiency was increased by 1.68%.

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The effect of front streamline wrapping angle variation in a super-low specific speed centrifugal pump

Cited by 7 publications

References 16 publications

Analysis of Stress–Strain Characteristics and Signal Coherence of Low-Specific-Speed Impeller Based on Fluid–Structure Interaction

Analysis of Stress–Strain Characteristics and Signal Coherence of Low-Specific-Speed Impeller Based on Fluid–Structure Interaction

Study on Noise Characteristics of Marine Centrifugal Pump Under Different Cavitation Stages

Influence of Blade Profiles on Plastic Centrifugal Pump Performance

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