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http://dx.doi.org/10.26748/KSOE.2019.034

Flow and Scour Analysis Around Monopole of Fixed Offshore Platform Using Method that Couples Computational Fluid Dynamics and Discrete Element Method  

Song, Seongjin (Department of Ocean Engineering, Korea Maritime and Ocean University)
Jeon, Wooyoung (Department of Ocean Engineering, Korea Maritime and Ocean University)
Park, Sunho (Department of Ocean Engineering, Korea Maritime and Ocean University)
Publication Information
Journal of Ocean Engineering and Technology / v.33, no.3, 2019 , pp. 245-251 More about this Journal
Abstract
When an offshore foundation is exposed to waves and currents, local scour could develop around a pile and even lead to structural failure. Therefore, understanding and predicting the scour due to sediment transport around foundations are important in the engineering design. In this study, the flow and scour around a monopole foundation exposed to a current were investigated using a method that coupled the computational fluid dynamics (CFD) and discrete element method (DEM). The open source computation fluid dynamics library OpenFOAM and a sediment transport library were coupled in the OpenFOAM platform. The incipient motion of the particle was validated. The flow fields and sediment transport around the monopole were simulated. The scour depth development was simulated and compared with existing experimental data. For the upstream scour hole, the equilibrium scour depth could be reproduced qualitatively, and it was underestimated by about 23%.
Keywords
Sediment transport; Scour; Computational fluid dynamics; Discrete element method; Monopole foundation;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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