Effect of Roughness of Mussels on Cylinder Forces from a Realistic Shape Modelling
Type | Article | ||||||||
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Date | 2021-06 | ||||||||
Language | English | ||||||||
Author(s) | Marty Antoine1, Schoefs Franck2, Soulard Thomas3, Berhault Christian4, Facq Jean-Valery1, Gaurier Benoit1, Germain Gregory1 | ||||||||
Affiliation(s) | 1 : Ifremer, Marine Structure Laboratory, 150 Quai Gambetta, 62200 Boulogne sur Mer, France 2 : Research Institute of Civil Engineering and Mechanics, Sea and Litoral Research Institute, Ecole Centrale de Nantes, Université de Nantes, CNRS, 44322 Nantes, France 3 : Laboratoire de Recherche en Hydrodynamique, Énergétique et Environnement Atmosphérique, Sea and Littoral Research Institute, Ecole Centrale de Nantes, University of Nantes, CNRS, 44322 Nantes, France 4 : Scientific Expert, Self-Employed, 83140 Six-Fours-les-Plages, France |
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Source | Journal Of Marine Science And Engineering (2077-1312) (MDPI AG), 2021-06 , Vol. 9 , N. 6 , P. 598 (18p.) | ||||||||
DOI | 10.3390/jmse9060598 | ||||||||
WOS© Times Cited | 11 | ||||||||
Note | This article belongs to the Special Issue Fluid/Structure Interactions | ||||||||
Keyword(s) | marine growth, hydrodynamic loading, roughness, mussels, morison coefficients | ||||||||
Abstract | After a few weeks, underwater components of offshore structures are colonized by marine species and after few years this marine growth can be significant. It has been shown that it affects the hydrodynamic loading of cylinder components such as legs and braces for jackets, risers and mooring lines for floating units. Over a decade, the development of Floating Offshore Wind Turbines highlighted specific effects due to the smaller size of their components. The effect of the roughness of hard marine growth on cylinders with smaller diameter increased and the shape should be representative of a real pattern. This paper first describes the two realistic shapes of a mature colonization by mussels and then presents the tests of these roughnesses in a hydrodynamic tank where three conditions are analyzed: current, wave and current with wave. Results are compared to the literature with a similar roughness and other shapes. The results highlight the fact that, for these realistic roughnesses, the behavior of the rough cylinders is mainly governed by the flow and not by their motions. |
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