CLC number: TH161.12
On-line Access: 2024-08-27
Received: 2023-10-17
Revision Accepted: 2024-05-08
Crosschecked: 2015-12-11
Cited: 9
Clicked: 7121
Citations: Bibtex RefMan EndNote GB/T7714
Jin-yuan Qian, Bu-zhan Liu, Zhi-jiang Jin, Jian-kai Wang, Han Zhang, An-le Lu. Numerical analysis of flow and cavitation characteristics in a pilot-control globe valve with different valve core displacements[J]. Journal of Zhejiang University Science A, 2016, 17(1): 54-64.
@article{title="Numerical analysis of flow and cavitation characteristics in a pilot-control globe valve with different valve core displacements",
author="Jin-yuan Qian, Bu-zhan Liu, Zhi-jiang Jin, Jian-kai Wang, Han Zhang, An-le Lu",
journal="Journal of Zhejiang University Science A",
volume="17",
number="1",
pages="54-64",
year="2016",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A1500228"
}
%0 Journal Article
%T Numerical analysis of flow and cavitation characteristics in a pilot-control globe valve with different valve core displacements
%A Jin-yuan Qian
%A Bu-zhan Liu
%A Zhi-jiang Jin
%A Jian-kai Wang
%A Han Zhang
%A An-le Lu
%J Journal of Zhejiang University SCIENCE A
%V 17
%N 1
%P 54-64
%@ 1673-565X
%D 2016
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A1500228
TY - JOUR
T1 - Numerical analysis of flow and cavitation characteristics in a pilot-control globe valve with different valve core displacements
A1 - Jin-yuan Qian
A1 - Bu-zhan Liu
A1 - Zhi-jiang Jin
A1 - Jian-kai Wang
A1 - Han Zhang
A1 - An-le Lu
J0 - Journal of Zhejiang University Science A
VL - 17
IS - 1
SP - 54
EP - 64
%@ 1673-565X
Y1 - 2016
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A1500228
Abstract: The pilot-control globe valve (PCGV) is a novel globe valve with a piston-type valve core and a small pilot valve. It can utilize a pressure difference to control the state of the main valve by the pilot valve. In this paper, a mathematical model of PCGV is established and a computational fluid dynamics (CFD) method is used to numerically simulate its flow and cavitation characteristics. Analysis of the pressure difference between the upside and downside of the valve core and comparison with similar previous work increase the reliability of the simulation. Then an analysis of flow and cavitation characteristics is carried out with three comparisons: a comparison between opened and closed states, a comparison between different inlet velocities, and a comparison between different valve core displacements. The results demonstrate that the vapor volume fraction reaches its peak point at the valve seat near the outlet tube, and that a higher inlet velocity or smaller valve core displacement can cause greater cavitation damage. This study can help further design work for optimization and engineering applications of PCGV.
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