FN Archimer Export Format PT J TI Effect of Roughness of Mussels on Cylinder Forces from a Realistic Shape Modelling BT AF Marty, Antoine Schoefs, Franck Soulard, Thomas Berhault, Christian Facq, Jean-Valery Gaurier, Benoit Germain, Gregory AS 1:1;2:2;3:3;4:4;5:1;6:1;7:1; FF 1:PDG-REM-RDT-LCSM;2:;3:;4:;5:PDG-REM-RDT-LCSM;6:PDG-REM-RDT-LCSM;7:PDG-REM-RDT-LCSM; C1 Ifremer, Marine Structure Laboratory, 150 Quai Gambetta, 62200 Boulogne sur Mer, France Research Institute of Civil Engineering and Mechanics, Sea and Litoral Research Institute, Ecole Centrale de Nantes, Université de Nantes, CNRS, 44322 Nantes, France 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 Scientific Expert, Self-Employed, 83140 Six-Fours-les-Plages, France C2 IFREMER, FRANCE UNIV NANTES, FRANCE ECOLE CENT NANTES, FRANCE Scientific Expert, Self-Employed, 83140 Six-Fours-les-Plages, France SI BOULOGNE SE PDG-REM-RDT-LCSM IN WOS Ifremer UPR DOAJ copubli-france copubli-univ-france IF 2.744 TC 11 UR https://archimer.ifremer.fr/doc/00696/80851/84457.pdf LA English DT Article DE ;marine growth;hydrodynamic loading;roughness;mussels;morison coefficients AB 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. PY 2021 PD JUL SO Journal Of Marine Science And Engineering SN 2077-1312 PU MDPI AG VL 9 IS 6 UT 000665890700001 DI 10.3390/jmse9060598 ID 80851 ER EF