Physical Modeling of Current-Induced Seabed Scour around a Vibrating Submarine Pipeline

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	Physical Modeling of Current-Induced Seabed Scour around a Vibrating Submarine Pipeline
	Gao FP(高福平); Yang B(杨兵); Yan SM(闫术明); Wu YX(吴应湘); Gao FP(高福平)
	2006-05-28
会议名称	16th International Offshore and Polar Engineering Conference (ISOPE 2006), MAY 28-JUN 02, 2006,San Francisco, CA
会议日期	MAY 28-JUN 02, 2006
会议地点	San Francisco, CA
通讯作者	高福平
中文摘要	Most of the existing researches either focus on vortex-induced-vibrations (VIV) of a pipeline near a rigid boundary, or on seabed scour around a fixed pipeline. In the fields, pipeline vibration and seabed scour are actually always coupled. Based on the similarity analysis, a series of tests were conducted with a hydro-elastic facility to investigate the influence of pipe vibration on the local scour and the effects of scour process on the pipeline dynamic responses. Experimental results indicate that, there exist two phases in the process of sand scouring around the pipeline with small embedment, i.e. Phase I: scour beneath pipe without VIV, and Phase II: scour with VIV of pipe. It is also found that the gap-to-diameter ratio (e/D) has much effect upon the scour depth for the fixed pipes. For a given value of e/D, the vibrating pipes with close proximity to seabed may induce a deeper scour hole than the fixed ones. Within the examined gap-to-diameter ratio range (425 < e/D < 0.75), the influences of gap-to-diameter ratio on the maximum values of scour-depth for the case of vibrating pipes are not as much as those for the case of fixed pipes.
收录类别	CPCI-S ; EI
会议录	Proceedings of the Sixteenth (2006) International Offshore and Polar Engineering Conference, 2006, 2:108-112
学科主题	力学
语种	英语
ISSN号	1-880653-66-4/1098-6189
WOS记录号	WOS:000240311300016
内容类型	会议论文
源URL	[http://dspace.imech.ac.cn/handle/311007/13853]
专题	力学研究所_力学所知识产出(1956-2008)
通讯作者	Gao FP(高福平)
推荐引用方式 GB/T 7714	Gao FP,Yang B,Yan SM,et al. Physical Modeling of Current-Induced Seabed Scour around a Vibrating Submarine Pipeline[C]. 见:16th International Offshore and Polar Engineering Conference (ISOPE 2006), MAY 28-JUN 02, 2006,San Francisco, CA. San Francisco, CA. MAY 28-JUN 02, 2006.