LAPSE:2020.0061
Published Article
LAPSE:2020.0061
Experimental and Numerical Study on Gas-Liquid Two-Phase Flow Behavior and Flow Induced Noise Characteristics of Radial Blade Pumps
January 7, 2020
Miniature drainage pumps with a radial blade are widely used in situations with critical constant head and low noise requests, but the stable operation state is often broken up by the entraining gas. In order to explore the internal flow characteristics under gas−liquid two phase flow, pump performance and emitted noise measurements were processed under different working conditions. Three-dimensional numerical calculations based on the Euler inhomogeneous model and obtained experimental boundaries were carried out under different inlet air void fractions (IAVFs). A hybrid numerical method was proposed to obtain the flow-induced emitted noise characteristics. The results show there is little influence on pump characteristics when the IAVF is less than 1%. The pump head slope degradation was found to increase with air content. The bubbles adhere to the impeller hub on the blade’s suction side and spread to the periphery with a big IAVF, leading to unstable operation. It is obvious that vortices appear inside the impeller flow passage as IAVF reaches 6.5%. The two-phase flow pattern has a small effect on the characteristic frequency distribution of pressure fluctuation and emitted noise, but the corresponding pulsation intensity and noise level will increase. The study could provide some reference for low noise design of the drainage pump.
Record ID
Keywords
gas-liquid two-phase flow, miniature drainage pump, pressure, radiate noise
Subject
Suggested Citation
Si Q, Shen C, Ali A, Cao R, Yuan J, Wang C. Experimental and Numerical Study on Gas-Liquid Two-Phase Flow Behavior and Flow Induced Noise Characteristics of Radial Blade Pumps. (2020). LAPSE:2020.0061
Author Affiliations
Si Q: National Research Center of Pumps, Jiangsu University, Zhenjiang 212013, China [ORCID]
Shen C: National Research Center of Pumps, Jiangsu University, Zhenjiang 212013, China
Ali A: National Research Center of Pumps, Jiangsu University, Zhenjiang 212013, China
Cao R: National Research Center of Pumps, Jiangsu University, Zhenjiang 212013, China
Yuan J: National Research Center of Pumps, Jiangsu University, Zhenjiang 212013, China
Wang C: College of Hydraulic Science and Engineering, Yangzhou University, Yangzhou 225009, China [ORCID]
Shen C: National Research Center of Pumps, Jiangsu University, Zhenjiang 212013, China
Ali A: National Research Center of Pumps, Jiangsu University, Zhenjiang 212013, China
Cao R: National Research Center of Pumps, Jiangsu University, Zhenjiang 212013, China
Yuan J: National Research Center of Pumps, Jiangsu University, Zhenjiang 212013, China
Wang C: College of Hydraulic Science and Engineering, Yangzhou University, Yangzhou 225009, China [ORCID]
Journal Name
Processes
Volume
7
Issue
12
Article Number
E920
Year
2019
Publication Date
2019-12-04
Published Version
ISSN
2227-9717
Version Comments
Original Submission
Other Meta
PII: pr7120920, Publication Type: Journal Article
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Published Article
LAPSE:2020.0061
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External Link
doi:10.3390/pr7120920
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[v1] (Original Submission)
Jan 7, 2020
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Jan 7, 2020
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https://psecommunity.org/LAPSE:2020.0061
Original Submitter
Calvin Tsay
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