Numerical study towards closed fish farms in waves using two Harmonic Polynomial Cell methods

In order to avoid salmon lice and minimize environmental pollution, closed fish-farm concepts are gaining increasing attention in Norway. Violent sloshing of the water inside the closed cage then becomes an important issue affecting structural and mooring loads. The main objective of our ongoing study is to develop a numerical tool to predict the response of a moored closed fish farm in waves. As a part of the solution-strategy development, here we will examine a simplified case: a two-dimensional (2D) closed fish farm.