Geodesic
Proceedings in flow modelling in the surroundings of the end part of a trawl
Géraldine Pichot1
1IFREMER, Technopôle Brest-Iroise, BP 70, 29280 Plouzane Cedex et IRMAR, Campus de Beaulieu, 35042 Rennes Cedex, geraldine.pichot@ifremer.fr
ESAIM. Proceedings, Tome 22 (2008), pp. 132-139
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This paper is devoted to the presentation of modelling procedures and of numerical simulations of the flow in the surroundings of the end part of a trawl, where fish are caught. We present first the hydrodynamical data collected in November 2004 at the IFREMER tank of Boulogne-sur-Mer around and inside an axisymmetric rigid net model. Then we show the use of averaged Navier-Stokes/Brinkman equations with an eddy viscosity coupled with an equation for the turbulent kinetic energy (TKE) (RANS type model of order one) as for a turbulent fluid model. Finally, we test this last model by comparing the numerical results obtained with the code that we have written in Freefem++ and the experimental data available.
DOI : 10.1051/proc:072216

Géraldine Pichot  1

1 IFREMER, Technopôle Brest-Iroise, BP 70, 29280 Plouzane Cedex et IRMAR, Campus de Beaulieu, 35042 Rennes Cedex, geraldine.pichot@ifremer.fr 
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Géraldine Pichot. Proceedings in flow modelling in the surroundings of the end part of a trawl. ESAIM. Proceedings, Tome 22 (2008), pp. 132-139. doi: 10.1051/proc:072216

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