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

CORC > 力学研究所 > 中国科学院力学研究所 > 流固耦合系统力学重点实验室(2012-)

	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
中文摘要	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.
收录类别	EI
语种	英语
ISBN号	9781138027329
内容类型	会议论文
源URL	[http://dspace.imech.ac.cn/handle/311007/49467]
专题	力学研究所_流固耦合系统力学重点实验室(2012-)
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]. 见:7th International Conference on Scour and Erosion. Perth, WA, Australia. 2014-12.