FN Archimer Export Format
PT J
TI Experimental study of two kinds of hard marine growth effects on the hydrodynamic behavior of a cylinder submitted to wave and current loading
BT 
AF Marty, Antoine
   Schoefs, Franck
   Damblans, G.
   FACQ, Jean-Valery
   Gaurier, Benoît
   Germain, Gregory
AS 1:1;2:2;3:3;4:1;5:1;6:1;
FF 1:PDG-REM-RDT-LCSM;2:;3:;4:PDG-REM-RDT-LCSM;5:PDG-REM-RDT-LCSM;6:PDG-REM-RDT-LCSM;
C1 Ifremer, Marine Structure Laboratory, 150 Quai Gambetta 62200 Boulogne sur Mer, France
   GeM, UMR CNRS 6183, Université de Nantes, 2 rue de la Houssinière, 44322 Nantes, France
   France Energies Marines, 525 Avenue Alexis de Rochon, 29280 Brest, France
C2 IFREMER, FRANCE
   UNIV NANTES, FRANCE
   FRANCE ENERGIES MARINES, FRANCE
SI BOULOGNE
SE PDG-REM-RDT-LCSM
IN WOS Ifremer UPR
   copubli-france
   copubli-univ-france
IF 5
TC 6
UR https://archimer.ifremer.fr/doc/00791/90277/97550.pdf
LA English
DT Article
DE ;Cable;Marine growth;Roughness;Drag coefficient;Coral;Mussel
AB The presence of marine growth increases submarine structures diameter and roughness and thus the hydrodynamic loading due to wave and current excitation. In this paper, two kinds of hard roughness (mussels and corals) are studied experimentally. In order to cover a wide range of the dimensionless numbers (Reynolds number, Keulegan–Carpenter number and reduced speed), three kind of trials are carried out: current only, forced motions and a combination of forced motions and current. Two equivalent diameters are used for the calculation of the hydrodynamic coefficients: an equivalent diameter corresponding to the closed volume of the system, where no fluid is permitted, and an equivalent diameter based on the projected area of the colonized structure for the drag coefficient, and on the total volume for inertia coefficients. Results show that these coefficients are up to 4 times higher than those obtained for a reference cylinder. The use of a different specific diameter for inertia and drag coefficient leads to fit all results with the reference cylinder results. This standardization prove that the knowledge of the volume and the projected surface of the cylindrical structure could simplify the forces estimation applied on the system just by knowing the corresponding smooth one. 
PY 2022
PD NOV
SO Ocean Engineering
SN 0029-8018
PU Elsevier BV
VL 263
UT 000863228500001
DI 10.1016/j.oceaneng.2022.112194
ID 90277
ER

EF