Show simple item record

dc.contributor.authorYang, S.
dc.contributor.authorShi, B.
dc.contributor.authorGuo, Yakun
dc.date.accessioned2019-06-28T09:27:00Z
dc.date.available2019-06-28T09:27:00Z
dc.date.issued2019-06-15
dc.identifier.citationYang S, Shi B and Guo Y (2019) Investigation on scour scale of piggyback pipeline under wave conditions. Ocean Engineering. 182: 196-202.en_US
dc.identifier.urihttp://hdl.handle.net/10454/17149
dc.descriptionYesen_US
dc.description.abstractLaboratory experiments are presented to investigate the effect of different piggyback pipeline configurations on the morphology of local scour under wave conditions. Scour depth and width around the pipelines under regular and irregular waves are measured and analyzed for a range of pipeline and wave conditions; such as the spacing between two pipes (G), gap between the main pipe and seabed (e), pipe diameter (D), wave height (H) and period (T). Experimental results reveal that both the scour depth and width around piggyback pipeline is much larger than those around single pipe under the same wave conditions. Scour depth increases with the increase of the Keulegan-Carpenter (KC) number and decreases with increase of G and e. When e exceeds 0.5D, scour depth tends to approach 0.When spacing G is greater than 0.4D, the destabilization from small pipe to large one is greatly reduced, resulting in scour depth around piggyback pipeline being close to that around single pipe. Similar to scour depth, scour width broadens with the increase of KC number increasing and decreases with the increase of G. Experiments also show that the effect of e on scour depth is greater than that of G under the same test conditions, while their impact on scour width is opposite. Furthermore, scour width under irregular waves is extended slightly compared with regular wave for otherwise the identical conditions.en_US
dc.description.sponsorshipNational Natural Science Foundation (No. 51279189).en_US
dc.language.isoenen_US
dc.relation.isreferencedbyhttps://doi.org/10.1016/j.oceaneng.2019.04.074en_US
dc.rights© 2019 Elsevier Ltd. All rights reserved. Reproduced in accordance with the publisher's self-archiving policy. This manuscript version is made available under the CC-BY-NC-ND 4.0 license.en_US
dc.subjectPiggyback pipelineen_US
dc.subjectScour depthen_US
dc.subjectScour widthen_US
dc.subjectGap-ratioen_US
dc.subjectSpacingen_US
dc.subjectWave actionen_US
dc.titleInvestigation on scour scale of piggyback pipeline under wave conditionsen_US
dc.status.refereedYesen_US
dc.date.Accepted2019-04-22
dc.date.application2019-05-03
dc.typeArticleen_US
dc.date.EndofEmbargo2020-05-04
dc.type.versionAccepted manuscripten_US
dc.description.publicnotesThe full-text of this article will be released for public view at the end of the publisher embargo on 04 May 2020.en_US
refterms.dateFOA2019-06-28T09:27:31Z


Item file(s)

Thumbnail
Name:
D-18-00515 accepted manuscript.docx
Size:
2.048Mb
Format:
Microsoft Word 2007
Description:
To keep suppressed
Thumbnail
Name:
Guo_Ocean_Engineering_2.pdf
Size:
716.6Kb
Format:
PDF

This item appears in the following Collection(s)

Show simple item record