Three-Dimensional Simulations of Scour around Pipelines of Finite Lengths
View / Open Files
Publication Date
2022-01-14Journal Title
Journal of Marine Science and Engineering
ISSN
2077-1312
Publisher
MDPI AG
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 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>
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/1810/332751
Statistics
Total file downloads (since January 2020). For more information on metrics see the
IRUS guide.
Recommended or similar items
The current recommendation prototype on the Apollo Repository will be turned off on 03 February 2023. Although the pilot has been fruitful for both parties, the service provider IKVA is focusing on horizon scanning products and so the recommender service can no longer be supported. We recognise the importance of recommender services in supporting research discovery and are evaluating offerings from other service providers. If you would like to offer feedback on this decision please contact us on: support@repository.cam.ac.uk