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dc.contributor.authorLiang, Dongfang
dc.contributor.authorHuang, Jie
dc.contributor.authorZhang, Jingxin
dc.contributor.authorShi, Shujing
dc.contributor.authorZhu, Nichenggong
dc.contributor.authorChen, Jun
dc.description.abstract<jats:p>In the past few decades, there have been many numerical studies on the scour around offshore pipelines, most of which concern two-dimensional setups, with the pipeline infinitely long and the flow perpendicular to the pipeline. Based on the Ansys FLUENT flow solver, this study establishes a numerical tool to study the three-dimensional scour around pipelines of finite lengths. The user-defined functions are written to calculate the sediment transport rate, update the bed elevation, and adapt the computational mesh to the new boundary. The correctness of the model has been verified against the measurements of the conventional two-dimensional scour around a long pipe and the three-dimensional scour around a sphere. A series of computations are subsequently carried out to discover how the scour hole is dependent on the pipeline length. It is found that the equilibrium scour depth increases with the pipeline length until the pipeline length exceeds four times the pipe diameter.</jats:p>
dc.description.sponsorshipThis research was funded by the National Natural Science Foundation of China (Grant No. 51679036), Royal Society (Grant No. IEC/NSFC/191369), and the Cambridge Tier-2 system operated by the University of Cambridge Research Computing Service funded by EPSRC Tier-2 capital (Grant No. EP/P020259/1).
dc.publisherMDPI AG
dc.rightsAttribution 4.0 International
dc.titleThree-Dimensional Simulations of Scour around Pipelines of Finite Lengths
dc.publisher.departmentDepartment of Engineering
prism.publicationNameJournal of Marine Science and Engineering
dc.contributor.orcidLiang, Dongfang [0000-0001-5639-7375]
rioxxterms.typeJournal Article/Review
pubs.funder-project-idRoyal Society (IEC\NSFC\191369)
pubs.licence-display-nameApollo Repository Deposit Licence Agreement

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Attribution 4.0 International
Except where otherwise noted, this item's licence is described as Attribution 4.0 International