CLC number: TH137
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Received: 2001-07-09
Revision Accepted: 2001-09-05
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GAO Hong, FU Xin, YANG Hua-yong, TSUKIJI Tetsuhiro. Numerical investigation of cavitating flow behind the cone of a poppet valve in water hydraulic system[J]. Journal of Zhejiang University Science A, 2002, 3(4): 395-400.
@article{title="Numerical investigation of cavitating flow behind the cone of a poppet valve in water hydraulic system",
author="GAO Hong, FU Xin, YANG Hua-yong, TSUKIJI Tetsuhiro",
journal="Journal of Zhejiang University Science A",
volume="3",
number="4",
pages="395-400",
year="2002",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.2002.0395"
}
%0 Journal Article
%T Numerical investigation of cavitating flow behind the cone of a poppet valve in water hydraulic system
%A GAO Hong
%A FU Xin
%A YANG Hua-yong
%A TSUKIJI Tetsuhiro
%J Journal of Zhejiang University SCIENCE A
%V 3
%N 4
%P 395-400
%@ 1869-1951
%D 2002
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2002.0395
TY - JOUR
T1 - Numerical investigation of cavitating flow behind the cone of a poppet valve in water hydraulic system
A1 - GAO Hong
A1 - FU Xin
A1 - YANG Hua-yong
A1 - TSUKIJI Tetsuhiro
J0 - Journal of Zhejiang University Science A
VL - 3
IS - 4
SP - 395
EP - 400
%@ 1869-1951
Y1 - 2002
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.2002.0395
Abstract: Computational Fluid Dynamics (CFD) simulations of cavitating flow through water hydraulic poppet valves were performed using advanced RNG k-epsilon turbulence model. The flow was turbulent, incompressible and unsteady, for Reynolds numbers greater than 43 000. The working fluid was water, and the structure of the valve was simplified as a two dimensional axisymmetric geometrical model. Flow field visualization was numerically achieved. The effects of inlet velocity, outlet pressure, opening size as well as poppet angle on cavitation intensity in the poppet valve were numerically investigated. Experimental flow visualization was conducted to capture cavitation images near the orifice in the poppet valve with 30° poppet angle using high speed video camera. The binary cavitating flow field distribution obtained from digital processing of the original cavitation image showed a good agreement with the numerical result.
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