August 20, 2025ProcessesOpen Access

Effect of Back Wear-Ring Clearance on the Internal Flow Noise in a Centrifugal Pump

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PZPeng Zhou MTMinggao Tan XWXianfang Wu

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Implication

Analysis shows increased back wear-ring clearance leads to higher internal flow noise in centrifugal pumps, suggesting design revisions may reduce noise issues.

Key Points

Higher back wear-ring clearance results in increased internal flow noise and decreased efficiency in centrifugal pumps.
When clearance reaches 1.05 mm, head drops by 4.35% and efficiency decreases by 14.86%, highlighting significant performance impacts.
Computational Fluid Dynamics and Acoustic Finite Element Method analyses showed varying noise levels across four clearance values, with optimal design suggesting 0.45 mm.
Increasing clearance enhances acoustic source strength and overall sound pressure level, indicating critical thresholds for pump design.

Cite This Study

Zhou et al. (2025) studied this question.

synapsesocial.com/papers/68af3e4fcf1dd9ea359eb8f5 https://doi.org/10.3390/pr13082641

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Implication

Analysis shows increased back wear-ring clearance leads to higher internal flow noise in centrifugal pumps, suggesting design revisions may reduce noise issues.

Effect of Back Wear-Ring Clearance on the Internal Flow Noise in a Centrifugal Pump

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Cite This Study

Effect of Back Wear-Ring Clearance on the Internal Flow Noise in a Centrifugal Pump

Discussion

Member takes

Implication

Key Points

Cite This Study

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