FN Archimer Export Format
PT J
TI Time-Resolved PIV investigations of the flow field around cod-end net structures
BT 
AF BOUHOUBEINY, Elkhadim
   GERMAIN, Gregory
   DRUAULT, Philippe
AS 1:1,2;2:2,3;3:1;
FF 1:PDG-REM-RDT-HO;2:PDG-REM-RDT-HO;3:;
C1 Univ Paris 06, CNRS, Inst Jean Le Rand dAlembert, UMR 7190, F-75252 Paris, France.
   IFREMER, Hydrodynam & Metocean Serv, F-62321 Boulogne, France.
   Univ Lille Nord France, F-59000 Lille, France.
C2 UNIV PARIS 06, FRANCE
   IFREMER, FRANCE
   UNIV LILLE, FRANCE
SI BOULOGNE
SE PDG-REM-RDT-HO
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-univ-france
IF 1.586
TC 13
UR https://archimer.ifremer.fr/doc/00027/13820/11046.pdf
LA English
DT Article
DE ;Fishing gear;PIV measurements;Vortex shedding;Proper Orthogonal Decomposition
AB Flow field measurements past a fixed rigid cod-end structure and past a porous fishing net structure are conducted using Time-Resolved PIV method. The rigid cod-end is first used to characterize finely the wake flow. Proper Orthogonal Decomposition (POD) is then applied in order to extract the large scale energetic vortices of the flow from the measured velocity field. It is then observed that the first POD modes are associated to the Karman's type flow structure of vortex shedding. It is shown that the characteristics of the wake flow behind the rigid cod-end flow configuration compare quite well with previous ones obtained from bluff cylinder or sphere wake analyzes. Second, PIV measurements are performed around a non-rigid bottom trawl which is free to move. Preliminary analyses show that the frequencies associated with the oscillatory motion of the porous structure are the same as the ones detected in the near wake flow demonstrating the lock-in regime. It is then expected that these preliminary results provide some interesting informations about future investigations on the drag force acting on fishing net structure.
PY 2011
PD MAR
SO Fisheries Research
SN 0165-7836
PU Elsevier Science Bv
VL 108
IS 2-3
UT 000288640600014
BP 344
EP 355
DI 10.1016/j.fishres.2011.01.010
ID 13820
ER

EF