On the experimental study of the flow around a fishing net

Type Article
Date 2009
Language English
Author(s) Pichot Geraldine1, Germain GregoryORCID2, Priour DanielORCID1
Affiliation(s) 1 : IFREMER, F-29280 Plouzane, France.
2 : IFREMER, Ctr Boulogne, F-62321 Boulogne Sur Mer, France.
Source European Journal of Mechanics - B/Fluids (0997-7546) (Elsevier), 2009 , Vol. 28 , N. 1 , P. 103-116
DOI 10.1016/j.euromechflu.2008.02.002
WOS© Times Cited 20
Keyword(s) Turbulence, Laser velocimetry, Fluid structure interactions, Experimental study, Hydrodynamics, Fluid mechanics
Abstract Selectivity of fishing gears like trawls is obviously conditioned by the fish behaviour but also by the net and the flow. As well, flow may affect fish behaviour. With the aim of a better understanding of the flow in presence of a net and a catch, we suggest, through the experimental study below, to determine and to analyze the flow over a rigid cod-end in two configurations: with a closed and an open net entrance. Trials took place in a free surface flume tank and the flow characteristics were determined from velocity measurements obtained by laser velocimetry (inside, outside and through the meshes of the stiff cod-end). The experimental device, the measures and their analyzes are given here.
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