Experimental Study Of Vortex-Induced Vibrations Of A Pipeline Near An Erodible Sandy Seabed

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	Experimental Study Of Vortex-Induced Vibrations Of A Pipeline Near An Erodible Sandy Seabed
	Yang B(杨兵); Gao FP(高福平); Jeng DS; Wu YX(吴应湘)
刊名	Ocean Engineering
	2008
通讯作者邮箱	fpgao@imech.ac.cn
页码	301-309
关键词	Submarine Pipeline Vortex-Induced Vibration Ocean Currents Sandy Seabed Numerical-Simulation Submarine Pipelines Local Scour Lee-Wake Boundary Model Bed
ISSN号	0029-8018
通讯作者	Gao, FP (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100080, Peoples R China.
中文摘要	Based on similarity analyses, a series of experiments have been conducted with a newly established hydro-elastic facility to investigate the transverse vortex-induced vibrations (VIVs) of a submarine pipeline near an erodible sandy seabed under the influence of ocean currents. Typical characteristics of coupling processes between pipe vibration and soil scour in the currents have been summarized for Case 1: pipe is laid above seabed and Case 11: pipe is partially embedded in seabed on the basis of the experimental observations. Pipe vibration and the corresponding local scour are usually two coupled physical processes leading to an equilibrium state. The influence of initial gap-to-diameter ratio (e(0)/D) on the interaction between pipe vibration and local scour has been studied. Experimental results show that the critical values of V-r for the initiation of VIVs of the pipe near an erodible sand bed get bigger with decreasing initial gap-to-diameter ratio within the examined range of e(0)/D (-0.25 < e(0)/D < 0.75). The comparison of the pipe vibrations near an erodible soil with those near a rigid boundary and under wall-free conditions indicates that the vibration amplitudes of the pipe near an erodible sand bed are close to the curve fit under wall-free conditions; nevertheless, for the same stability parameter, the maximum amplitudes for the VIV coupled with local scour increase with the increase of initial gap-to-diameter ratio. (c) 2007 Elsevier Ltd. All rights reserved.
类目[WOS]	Engineering, Marine ; Engineering, Civil ; Engineering, Ocean ; Oceanography
研究领域[WOS]	Engineering ; Oceanography
关键词[WOS]	NUMERICAL-SIMULATION ; SUBMARINE PIPELINES ; LOCAL SCOUR ; LEE-WAKE ; BOUNDARY ; MODEL ; BED
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000253702600003
公开日期	2009-08-03 ; 2009-09-14
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/26118]
专题	力学研究所_力学所知识产出(1956-2008)
推荐引用方式 GB/T 7714	Yang B,Gao FP,Jeng DS,et al. Experimental Study Of Vortex-Induced Vibrations Of A Pipeline Near An Erodible Sandy Seabed[J]. Ocean Engineering,2008:301-309.
APA	杨兵,高福平,Jeng DS,&吴应湘.(2008).Experimental Study Of Vortex-Induced Vibrations Of A Pipeline Near An Erodible Sandy Seabed.Ocean Engineering,301-309.
MLA	杨兵,et al."Experimental Study Of Vortex-Induced Vibrations Of A Pipeline Near An Erodible Sandy Seabed".Ocean Engineering (2008):301-309.