Seabed proximity effects on the wave-induced hydrodynamic forces on a submarine pipeline | |
Peng XF; Qi WG(漆文刚); Gao FP(高福平) | |
2016 | |
会议名称 | 12th ISOPE Pacific-Asia Offshore Mechanics Symposium, PACOMS 2016 |
会议日期 | October 4, 2016 - October 7, 2016 |
会议地点 | Gold Coast, QLD, Australia |
关键词 | Fluid structures Force coefficients Hydrodynamic forces Inertial coefficients Morison equation Pressure oscillation Proximity effects Relative location |
中文摘要 | Most existing studies on the submarine pipeline hydrodynamics are either for the pipes above the seabed or for those buried in the seabed. In this study, the seabed proximity effects on the wave-induced hydrodynamics of the pipes with typical relative locations are investigated experimentally in a large fluid-structure-soil interaction flume. Experimental results indicate that when the pipe is above the seabed, the inertial coefficient CMand upward lift coefficient CLTincrease with decreasing the gap-to-diameter ratios (e/D) for e/D > 0.5. With e/D decreasing from 1.0 to 0, the drag coefficient CDand downward lift coefficient CLTincrease gradually and reach their peak values at e/D≈0.l, then decrease as the pipe further approaching the seabed. When the pipe is buried in the seabed (e/D>0), the effect of inertia on the in-line force gets weaken. The maximum values of the downward and upward lift forces happen approximately under the wave crest and wave trough, respectively. Moreover, the pore pressure oscillation amplitudes increase on the upper-half segment of the pipe and decrease on its lower-half segment in comparison with those at the same depths in the far-field. Copyright © 2016 by the International Society of Offshore and Polar Engineers. |
收录类别 | EI |
会议录 | Proceedings of the 12th ISOPE Pacific-Asia Offshore Mechanics Symposium, PACOMS 2016 |
语种 | 英语 |
ISBN号 | 9781880653982 |
内容类型 | 会议论文 |
源URL | [http://dspace.imech.ac.cn/handle/311007/60155] |
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 | Peng XF,Qi WG,Gao FP. Seabed proximity effects on the wave-induced hydrodynamic forces on a submarine pipeline[C]. 见:12th ISOPE Pacific-Asia Offshore Mechanics Symposium, PACOMS 2016. Gold Coast, QLD, Australia. October 4, 2016 - October 7, 2016. |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论