| Steady current induced vibration of near-bed piggyback pipelines: Configuration effects on VIV suppression | |
Zang ZP(臧志鹏) ; Gao FP(高福平); Gao, FP (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China.
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| Source Publication | APPLIED OCEAN RESEARCH
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| 2014-06 | |
| Volume | 46Pages:62-69 |
| ISSN | 0141-1187 |
| Abstract | A series of experiments on steady current induced vibration of piggyback pipelines close to a plane seabed were conducted with a hydro-elastic facility in a conventional water flume. The effects of the mass-damping parameter, the diameter ratio, the gap-to-diameter ratio, the spacing-to-diameter ratio and the position angle on the VIV response were studied. The VIV suppression for the piggyback pipeline system by the small pipe was investigated based on the analysis of the vibration amplitude and the critical reduced velocity for the onset of VIV. Comparison with the prediction with the modified Griffin plot by Govardhan and Williamson (2006) [10] shows that the peak vibration amplitude of near-wall piggyback pipelines is smaller than that for a wall-free single pipe. The configuration parameters of piggyback pipelines have significant effects on the VIV suppression. For the configuration of the small pipe above the main pipe (theta = 90 degrees), the minimum peak amplitude and the maximum critical reduced velocity occur at the spacing-to-diameter ratio of G/D approximate to 0.25, indicating that VIV is suppressed most effectively by the small pipe at this value of G/D. For a constant value of G/D = 0.25, both the minimum peak amplitude and the maximum critical reduced velocity occur at the position angle of theta approximate to 120 degrees. (C) 2014 Elsevier Ltd. All rights reserved. |
| Keyword | Piggyback Pipelines Vortex Induced Vibration Steady Currents Viv Suppression |
| Subject Area | Engineering ; Oceanography |
| URL | 查看原文 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000336474200006 |
| Funding Organization | This work is financially supported by National Natural Science Foundation of China (Grant Nos. 51109202; 11372319). The authors would like to acknowledge the technical support and data analysis from Mr. Jinsheng Cui during his postgraduate study at Institute of Mechanics CAS. |
| Department | LMFS流固土耦合力学(LHO) |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/48882 |
| Collection | 流固耦合系统力学重点实验室 |
| Corresponding Author | Gao, FP (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China. |
| Recommended Citation GB/T 7714 | Zang ZP,Gao FP,Gao, FP . Steady current induced vibration of near-bed piggyback pipelines: Configuration effects on VIV suppression[J]. APPLIED OCEAN RESEARCH,2014,46:62-69. |
| APA | 臧志鹏,高福平,&Gao, FP .(2014).Steady current induced vibration of near-bed piggyback pipelines: Configuration effects on VIV suppression.APPLIED OCEAN RESEARCH,46,62-69. |
| MLA | 臧志鹏,et al."Steady current induced vibration of near-bed piggyback pipelines: Configuration effects on VIV suppression".APPLIED OCEAN RESEARCH 46(2014):62-69. |
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