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Numerical simulation on cavitation characteristics of flow field in centrifugal pump
Published:2016-08-01 author:MING Tingfeng1, GUO Jingjia2, CAO Yuliang1, ZHANG Jun1 Browse: 3583 Check PDF documents

Numerical simulation on cavitation characteristics of flow field in centrifugal pump

MING Tingfeng1, GUO Jingjia2, CAO Yuliang1, ZHANG Jun1

(1.Power Engineering College, Naval University of Engineering, Wuhan 430033, China;

2.Equipment Quality Control Office, Unit 91656, Shanghai 200136, China)

Abstract: Aiming at the difficult problem of the characteristics analysis of the flow field in the centrifugal pump, the numerical simulation method was proposed, which was based on the Geometric model established, the mesh generation and boundary conditions set. By using the computational fluid dynamics method, the relation between the head capacity and the flow, the efficiency and the flow of the centrifugal pump were found respectively in open water performance conditions. On the basis of the Zwart cavitation model, the cavitation flow field was numerical simulated under different NPSH of centrifugal pump. The streamline distribution and the cavitation bubbles distribution were obtained. The result indicates that through the comparison of experiment performance and cavitation numerical simulation of centrifugal pump, the numerical method and cavitation model is reasonable and effective, it can provide reference for further research on the technology of centrifugal pump cavitation monitoring.

Key words: centrifugal pump; cavitation characteristics; computational fluid dynamics(CFD); numerical simulation; flow field


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