首页|Experimental Study on Vortex-Induced Vibration of Rough Risers with Coupling Interference Effect Under Side-by-Side Arrangement

Experimental Study on Vortex-Induced Vibration of Rough Risers with Coupling Interference Effect Under Side-by-Side Arrangement

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A vortex-induced vibration(VIV)experiment of rough risers with coupling interference effect under a side-by-side arrangement was carried out in a wave-current combined flume.The roughness of the riser was characterized by arranging different specifications of surface attachments on the surface of the riser.Rough risers with three different roughnesses were arranged side by side with smooth risers to explore the VIV response of the riser under the combined action of roughness and interference effect,and to reveal the coupling mechanism between roughness and interference effect.The experimental results show that,compared with that of a smooth riser,the VIV of a rough riser under the coupling interference effect has a wider"lock-in"region,and the displacement decreases more significantly at a high reduced velocity,which is more likely to excite higher-order modes and frequency responses.In addition,the dis-placement response and frequency response of the smooth riser are not significantly affected by wake interference from the rough riser,which is caused by the decrease of the wake region due to the delay of the boundary layer separation point of the rough riser.

marine riservortex-induced vibrationside-by-side arrangementroughnessinterference effect

HU Ze-bo、LIU Zhen、LI Peng、GUO Hai-yan、WANG Shu-bing、REN Xiao-hui、HOU Hao、WANG Ye-shuo

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College of Civil Engineering and Architecture,Shandong University of Science and Technology,Qingdao 266590,China

Qingdao Key Laboratory of Marine Civil Engineering Materials and Structures,Qingdao 266590,China

College of Engineering,Ocean University of China,Qingdao 266100,China

CHEC Dredging Co.,Ltd,Shanghai 200136,China

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山东省自然科学基金山东省自然科学基金Key Technology Research and Development Program of Shandong ProvinceNatural Science Foundation of QingdaoIntroduction and Education Plan for Young Innovative talents in Colleges and Universities of Shandong Province

ZR2023ME040ZR2022QE1182023CXGC01031623-2-1-207-zyydjch

2024

10.1007/s13344-024-0002-5

中国海洋工程(英文版)
中国海洋学会

中国海洋工程(英文版)

CSTPCDEI
影响因子：0.338
ISSN：0890-5487
年,卷(期)：2024.38(1)
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