Numerical simulation of water flow around a rigid fishing net

TL;DR

This paper presents a numerical simulation approach for water flow around a rigid axisymmetric fishing net, incorporating turbulence modeling and boundary conditions, validated against experimental data.

Contribution

It introduces a detailed modeling and numerical scheme for simulating flow around rigid nets, including turbulence and boundary conditions, with validation against experiments.

Findings

Numerical results agree well with experimental data.

The model successfully captures flow behavior around the net.

The variational problem has a proven solution.

Abstract

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.