Equilibrium scour depth at offshore monopile foundation 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 | SCIENCE CHINA-TECHNOLOGICAL SCIENCES
 |
| 出版日期 | 2014-05 |
| 卷号 | 57期号:5页码:1030-1039 |
| 通讯作者邮箱 | fpgao@imech.ac.cn |
| 关键词 | monopile pore-pressure scour depth combined waves and current Froude number |
| ISSN号 | 1674-7321 |
| 产权排序 | [Qi WenGang; Gao FuPing] 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 | Unlike the pier scour in bridge waterways, the local scour at offshore monopile foundations should take into account the effect of wave-current combination. Under the condition of wave-current coexistence, the water-soil interfacial scouring is usually coupled with the pore-pressure dynamics inside of the seabed. The aforementioned wave/current-pile-soil coupling process was physically modeled with a specially designed flow-structure-soil interaction flume. Experimental results indicate that superimposing a current onto the waves obviously changes the pore-pressure and the flow velocity at the bed around the pile. The concomitance of horseshoe vortex and local scour hole around a monopile proves that the horseshoe vortex is one of the main controlling mechanisms for scouring development under the combined waves and current. Based on similarity analyses, an average-velocity based Froude number (Fr (a)) is proposed to correlate with the equilibrium scour depth (S/D) at offshore monopile foundation in the combined waves and current. An empirical expression for the correlation between S/D and Fr (a) is given for predicting equilibrium scour depth, which may provide a guide for offshore engineering practice. |
| 学科主题 | Engineering; Materials Science |
| 分类号 | 二类/Q2 |
| 收录类别 | SCI ; EI |
| 资助信息 | This work was supported by the National Natural Science Foundation of China (Grant Nos. 11232012, 10872198) and the National Basic Research Program of China ("973" Project) (Grant No. 2014CB046204). |
| 原文出处 | http://dx.doi.org/10.1007/s11431-014-5538-9 |
| 语种 | 英语 |
| WOS记录号 | WOS:000335903500021 |
| 公开日期 | 2014-06-19 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/48863]  |
| 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. Equilibrium scour depth at offshore monopile foundation in combined waves and current[J]. SCIENCE CHINA-TECHNOLOGICAL SCIENCES,2014,57(5):1030-1039. |
| APA | 漆文刚,&高福平.(2014).Equilibrium scour depth at offshore monopile foundation in combined waves and current.SCIENCE CHINA-TECHNOLOGICAL SCIENCES,57(5),1030-1039. |
| MLA | 漆文刚,et al."Equilibrium scour depth at offshore monopile foundation in combined waves and current".SCIENCE CHINA-TECHNOLOGICAL SCIENCES 57.5(2014):1030-1039. |
入库方式： OAI收割
来源：力学研究所
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