Nuclear Engineering and Technology

Korean Nuclear Society (한국원자력학회)
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Investigation on cavitating flow and parameter effects in a control valve with a perforated cage

  • Wang, Hong (Naval Architecture and Ocean Engineering College, Dalian Maritime University) ;
  • Zhu, Zhimao (Naval Architecture and Ocean Engineering College, Dalian Maritime University) ;
  • Zhang, Miao (Naval Architecture and Ocean Engineering College, Dalian Maritime University) ;
  • Li, Jie (Naval Architecture and Ocean Engineering College, Dalian Maritime University) ;
  • Huo, Weiqi (Liaoning Hongyanhe Nuclear Power CO. LTD)
  • Received : 2020.10.11
  • Accepted : 2021.02.01
  • Published : 2021.08.25
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Abstract

Valve is widely used in the various industry areas to adjust and control the flow. Cavitation frequently takes place and sometimes is inevitable in various types of valve to cause the erosion damage. Therefore, how to control and minimize the effect of cavitation is still an important topic. This study numerically investigates the cavitating flow in a control valve with a perforated cage. The effects of some parameters on the cavitation are discussed. It also discusses to use the throttling steps to govern the cavitating flow. The results show that the opening degree of valve and the length of downstream divergent connection both influence the cavitation. The increase of the divergent length reinforces the cavitation. And the larger the opening of valve is, the intenser the cavitation is and the more vapor is present. The more throttling steps are helpful to decrease the cavitation.

Keywords

Acknowledgement

The authors gratefully acknowledge the financial support by Liaoning Hongyanhe Nuclear Power CO. LTD and Natural Science Foundation Project of Liaoning province (20180550685). Many thanks are given to the engineers who provide great help during this study.

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