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Numerical investigation of the flow pattern around a vertical cylinder under wave action
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Ben HE1, Junkang WENG2, Yuan LIN2, Yifan GAO1, Maoxing WEI2, Fang HE2. Numerical investigation of the flow pattern around a vertical cylinder under wave action[J]. Journal of Zhejiang University Science A, 1998, -1(-1): .
@article{title="Numerical investigation of the flow pattern around a vertical cylinder under wave action",
author="Ben HE1, Junkang WENG2, Yuan LIN2, Yifan GAO1, Maoxing WEI2, Fang HE2",
journal="Journal of Zhejiang University Science A",
volume="-1",
number="-1",
pages="",
year="1998",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A2500436"
}
%0 Journal Article
%T Numerical investigation of the flow pattern around a vertical cylinder under wave action
%A Ben HE1
%A Junkang WENG2
%A Yuan LIN2
%A Yifan GAO1
%A Maoxing WEI2
%A Fang HE2
%J Journal of Zhejiang University SCIENCE A
%V -1
%N -1
%P
%@ 1673-565X
%D 1998
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A2500436
TY - JOUR
T1 - Numerical investigation of the flow pattern around a vertical cylinder under wave action
A1 - Ben HE1
A1 - Junkang WENG2
A1 - Yuan LIN2
A1 - Yifan GAO1
A1 - Maoxing WEI2
A1 - Fang HE2
J0 - Journal of Zhejiang University Science A
VL - -1
IS - -1
SP -
EP -
%@ 1673-565X
Y1 - 1998
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A2500436
Abstract: The interaction between vertical cylinders and waves is an important research problem due to the prevalence of cylinder-type structures in marine infrastructure. A major goal is to improve their design for greater stability in the presence of waves. In this study we numerically investigate the formation of vortices around a vertical cylinder under wave action, emphasizing the role of the flow field in potential bed erosion. Surface pressure distribution analysis elucidates the generation and evolution of the vortices, while the spatial distributions of bed shear stress quantify the significant influence of the flow field and vortex dynamics on scour around the cylinder. Numerical simulations were performed over a range of Keulegan-Carpenter (KC) numbers (12 to 26) to systematically resolve the three-dimensional flow structures. Validation against Particle Image Velocimetry (PIV) data confirms the accuracy of these simulations. Our results show that both the strength and spatial extent of the horseshoe vortex increase markedly with increasing KC number, leading to intensified bed shear stress and elevated scour potential around the cylinder.
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