LAPSE:2020.0245
Published Article
LAPSE:2020.0245
Numerical Study on the Influence of Inlet Guide Vanes on the Internal Flow Characteristics of Centrifugal Pump
Peifeng Lin, Yongzheng Li, Wenbin Xu, Hui Chen, Zuchao Zhu
February 12, 2020
In order to make the centrifugal pump run efficiently and stably under various working conditions, the influences of the incoming vortex flow in the inlet pipe on the main flow in the impeller is studied numerically, based on the k − ω SST turbulence model. Some guide vanes with different offset angle were added to change the statistical characteristic of the internal flow in the inlet pipe of the centrifugal pump. Both contour distributions of internal flow and statistical results of external performance are obtained and analyzed. The results show that the existence of vanes can divide the large vortex because of the reversed flow from the rotating impeller at low flow rate conditions into small vortices, which are easier to dissipate, make the velocity and pressure distribution more uniform, improve the stability of the flow in the impeller, reduce the hydraulic loss, and improve the hydraulic performance of the pump. The pump with vanes of offset angle 25° has a small pressure pulsation amplitude at each monitoring point. Comparing with the performance of the original pump, the head increased by around 2% and efficiency increased by around 2.5% of the pump with vanes of offset angle 25°.
Keywords
centrifugal pump, inlet guide vanes, offset angle, the pressure fluctuation frequency
Suggested Citation
Lin P, Li Y, Xu W, Chen H, Zhu Z. Numerical Study on the Influence of Inlet Guide Vanes on the Internal Flow Characteristics of Centrifugal Pump. (2020). LAPSE:2020.0245
Author Affiliations
Lin P: Key Laboratory of Fluid Transmission Technology of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China [ORCID]
Li Y: Key Laboratory of Fluid Transmission Technology of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China
Xu W: Key Laboratory of Fluid Transmission Technology of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China
Chen H: Xi’an Aerospace Propulsion Institute, China Aerospace Science and Technology Corporation, Xi’an 710100, China
Zhu Z: Key Laboratory of Fluid Transmission Technology of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou 310018, China
Journal Name
Processes
Volume
8
Issue
1
Article Number
E122
Year
2020
Publication Date
2020-01-17
Published Version
ISSN
2227-9717
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Original Submission
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PII: pr8010122, Publication Type: Journal Article
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LAPSE:2020.0245
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doi:10.3390/pr8010122
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CC BY 4.0
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[v1] (Original Submission)
Feb 12, 2020
 
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Feb 12, 2020
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Original Submitter
Calvin Tsay
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