Experimental study on onset of vortex-induced vibration of a pipeline near a seabed

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	Experimental study on onset of vortex-induced vibration of a pipeline near a seabed
	Zang ZP(臧志鹏); Gao FP(高福平)
	2015-01
会议名称	7th International Conference on Scour and Erosion
会议日期	2014-12
会议地点	Perth, WA, Australia
摘要	The critical flow velocity for onset of Vortex-Induced Vibration (VIV) of a pipeline near a rigid or a scoured seabed was experimentally investigated. The model pipe was initially positioned at a small gap to a rigid seabed or partially embedded in a silty seabed. The value of the embedment/gap-to-diameter ratio was changed from −0.2 to 1.0. A statistic form of the flow velocity, which is composed of the mean value and the Root-Mean-Square Deviation (RMSD) of the flow velocity, is applied in quantifying the onset condition of VIV. It was found that the onset of VIV is attributed to the joint contributions of both the mean flow and the turbulent component of the flow. The correlation of the critical reduced velocity with the initial position of the pipeline and the scour depth were concluded based on the experimental results. © 2015 Taylor & Francis Group, London.The critical flow velocity for onset of Vortex-Induced Vibration (VIV) of a pipeline near a rigid or a scoured seabed was experimentally investigated. The model pipe was initially positioned at a small gap to a rigid seabed or partially embedded in a silty seabed. The value of the embedment/gap-to-diameter ratio was changed from −0.2 to 1.0. A statistic form of the flow velocity, which is composed of the mean value and the Root-Mean-Square Deviation (RMSD) of the flow velocity, is applied in quantifying the onset condition of VIV. It was found that the onset of VIV is attributed to the joint contributions of both the mean flow and the turbulent component of the flow. The correlation of the critical reduced velocity with the initial position of the pipeline and the scour depth were concluded based on the experimental results. © 2015 Taylor & Francis Group, London.
课题组名称	LMFS流固土耦合力学(LHO)
ISBN号	9781138027329
收录类别	EI
语种	英语
文献类型	会议论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/49467
专题	流固耦合系统力学重点实验室
推荐引用方式 GB/T 7714	Zang ZP,Gao FP. Experimental study on onset of vortex-induced vibration of a pipeline near a seabed[C],2015.

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