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Numerical simulation of water flow around a rigid fishing net. (English) Zbl 1173.76410
Summary: This paper is devoted to the simulation of the flow around and inside a rigid axisymmetric net. We describe first how experimental data have been obtained. We show in detail the modelization. The model is based on a Reynolds Averaged Navier-Stokes turbulence model penalized by a term based on the Brinkman law. At the out-boundary of the computational box, we have used a “ghost” boundary condition. We show that the corresponding variational problem has a solution. Then the numerical scheme is given and the paper finishes with numerical simulations compared with the experimental data.

##### MSC:
 76S05 Flows in porous media; filtration; seepage 76F99 Turbulence 76M30 Variational methods applied to problems in fluid mechanics 76M10 Finite element methods applied to problems in fluid mechanics 35Q35 PDEs in connection with fluid mechanics
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