Three-Dimensional Simulations of Scour around Pipelines of Finite Lengths
Authors
Liang, D
Huang, J
Zhang, J
Shi, S
Zhu, N
Chen, J
Publication Date
2022Journal Title
Journal of Marine Science and Engineering
ISSN
2077-1312
Publisher
MDPI AG
Volume
10
Issue
1
Language
en
Type
Article
This Version
VoR
Metadata
Show full item recordCitation
Liang, D., Huang, J., Zhang, J., Shi, S., Zhu, N., & Chen, J. (2022). Three-Dimensional Simulations of Scour around Pipelines of Finite Lengths. Journal of Marine Science and Engineering, 10 (1) https://doi.org/10.3390/jmse10010106
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>
Keywords
pipelines, hydrodynamics, computational fluid dynamics, sediment transport, scour
Sponsorship
This 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).
Funder references
Royal Society (IEC\NSFC\191369)
Identifiers
External DOI: https://doi.org/10.3390/jmse10010106
This record's URL: https://www.repository.cam.ac.uk/handle/1810/333126
Rights
Licence:
https://creativecommons.org/licenses/by/4.0/
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