Internal flow structure, fault detection, and performance optimization of centrifugal pumps

This review mainly summarizes the latest developments in the internal flow field and external characteristics of centrifugal pumps. In particular, the latest findings of centrifugal pumps focused on turbulence and cavitation models, flow visualization methods, and fault detection based on noise and...

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Bibliographic Details
Published in:Journal of Zhejiang University. A. Science 2020-02, Vol.21 (2), p.85-117
Main Authors: Tong, Zhe-ming, Xin, Jia-ge, Tong, Shui-guang, Yang, Zhong-qin, Zhao, Jian-yun, Mao, Jun-hua
Format: Article
Language:English
Subjects:
Cavitation
Centrifugal pumps
Civil Engineering
Classical and Continuum Physics
Computational fluid dynamics
Computer simulation
Engineering
Fault detection
Flow visualization
Impellers
Industrial Chemistry/Chemical Engineering
Internal flow
Mechanical Engineering
Multiple objective analysis
Optimization
Pumps
Review
Suction
Turbulence
Turbulent flow
Vibration
Visualization
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Summary:This review mainly summarizes the latest developments in the internal flow field and external characteristics of centrifugal pumps. In particular, the latest findings of centrifugal pumps focused on turbulence and cavitation models, flow visualization methods, and fault detection based on noise and vibration. The external characteristics, cavitation, and vibration of the centrifugal pump were extensively discussed. In addition, advanced multi-objective optimization methods for improving impeller’s efficiency and reducing net positive suction head (NPSH) were briefed. Although some progress was made in this field, there remain many unsolved problems, such as monitoring and modeling of cavitation, rotational stall phenomenon, and discrepancies between simulation and measurement. In the future, researchers are encouraged to employ multi-dimensional flow visualization technologies and high-performance computing facilities to advance existing understandings on these issues and create new research directions.
ISSN:1673-565X
1862-1775
DOI:10.1631/jzus.A1900608