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Physical modeling of local scour development around a large-diameter monopile in combined waves and current
文献类型：期刊论文
| 作者 | Qi WG(漆文刚) ; Gao FP(高福平)
|
| 刊名 | COASTAL ENGINEERING
 |
| 出版日期 | 2014-01 |
| 卷号 | 83页码:72-81 |
| 通讯作者邮箱 | fpgao@imech.ac.cn |
| 关键词 | Monopile Local scour Pore pressure Combined waves and current |
| ISSN号 | 0378-3839 |
| 产权排序 | Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China |
| 通讯作者 | Gao, FP (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China. |
| 中文摘要 | In most of the previous studies on local scour around pile foundations, wave-induced pore pressure response has not been taken into account. The local-scour and pore-pressure responses around a large-diameter monopile in combined waves and current have been physically modeled with a specially-designed flow-structure-soil interaction flume. In the series of experiments, the time developments of the scour-depth and the pore-pressure in the proximity of the model pile were measured simultaneously. Experimental results indicate that the wave-induced upward seepage under the wave troughs may weaken the buoyant unit weight of the surrounding sand, which brings the sand-bed more susceptible to scouring. The superimposition of the waves on a current has much effect on the time-development of local scour and the resulting equilibrium scour-depth, which is particularly obvious when the sand-bed is in the clear-water regime under the current or waves alone respectively. It is observed that the maximum flow velocity at the boundary layer for the following-current case is larger than that for the opposing-current case, which further results in faster time development of scour depth and greater equilibrium scour depth for the following-current case. |
| 学科主题 | 水动力学 |
| 分类号 | 一类 |
| 收录类别 | SCI ; EI |
| 资助信息 | National Natural Science Foundation of China [11232012, 10872198]; Major State Basic Research Development Program of China (973 Program) [2014CB046204] |
| 原文出处 | http://dx.doi.org/10.1016/j.coastaleng.2013.10.007 |
| 语种 | 英语 |
| WOS记录号 | WOS:000328662800008 |
| 公开日期 | 2014-02-13 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/48087]  |
| 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 | Qi WG,Gao FP. Physical modeling of local scour development around a large-diameter monopile in combined waves and current[J]. COASTAL ENGINEERING,2014,83:72-81. |
| APA | 漆文刚,&高福平.(2014).Physical modeling of local scour development around a large-diameter monopile in combined waves and current.COASTAL ENGINEERING,83,72-81. |
| MLA | 漆文刚,et al."Physical modeling of local scour development around a large-diameter monopile in combined waves and current".COASTAL ENGINEERING 83(2014):72-81. |
入库方式： OAI收割
来源：力学研究所
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