3D scour below pipelines under waves and combined waves and currents
文献类型：期刊论文
| 作者 | Cheng L; Yeow K; Zang ZP(臧志鹏) ; Li FJ
|
| 刊名 | COASTAL ENGINEERING
 |
| 出版日期 | 2014-01 |
| 卷号 | 83页码:137-149 |
| 关键词 | Pipeline Scour Free span Scour rates Waves Combined wave and current |
| ISSN号 | 0378-3839 |
| 产权排序 | [Cheng, Liang; Yeow, Kervin] Univ Western Australia, Sch Civil & Resource Engn, Crawley, WA 6009, Australia; [Zang, Zhipeng] Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China; [Cheng, Liang] Dalian Univ Technol, Stake Key Lab Coastal & Offshore Engn, Dalian 116024, Peoples R China; [Li, Fangjun] Dept Transportat, Fremantle, WA 6160, Australia |
| 通讯作者 | Cheng, L (reprint author), Univ Western Australia, Sch Civil & Resource Engn, 35 Stirling Highway, Crawley, WA 6009, Australia. |
| 合作状况 | 国际 |
| 中文摘要 | This paper presents the results of an experimental investigation on three-dimensional local scour below a rigid pipeline subjected to wave only and combined wave and current conditions. The tests were conducted in a conventional wave flume. The major emphasis of the investigation was on the scour propagation speed (free span expansion rate) along the pipeline after local scour was initiated at a controlled location. The effects of flow ratio (steady current velocity vs. combined waves/current velocity), flow incidence angle and pipeline initial embedment depth on free span expansion rate were investigated. It was observed that the scour along the pipeline propagated at a constant rate under wave only conditions. The scour propagation rate decreased with increasing embedment depth, however, increased with the increasing Keuglegan-Carpenter (KC) number. Under combined wave and current conditions, the effect of velocity ratio on scour propagation velocity along the pipeline was quantified. Empirical relationships between the scour propagation rate (Vh) and key parameters such as the KC number and embedment depth (e/D) were established based on the testing results. |
| 学科主题 | 水动力学 |
| 分类号 | 一类 |
| 收录类别 | SCI ; EI |
| 资助信息 | Australian Research Council [LP0989936]; National Natural Science Foundation of China [51109202]; Dalian University of Technology (DUT) |
| 原文出处 | http://dx.doi.org/10.1016/j.coastaleng.2013.10.006 |
| 语种 | 英语 |
| WOS记录号 | WOS:000328662800013 |
| 公开日期 | 2014-02-13 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/48086]  |
| 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 | Cheng L,Yeow K,Zang ZP,et al. 3D scour below pipelines under waves and combined waves and currents[J]. COASTAL ENGINEERING,2014,83:137-149. |
| APA | Cheng L,Yeow K,臧志鹏,&Li FJ.(2014).3D scour below pipelines under waves and combined waves and currents.COASTAL ENGINEERING,83,137-149. |
| MLA | Cheng L,et al."3D scour below pipelines under waves and combined waves and currents".COASTAL ENGINEERING 83(2014):137-149. |
入库方式： OAI收割
来源：力学研究所
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