Comparative study of circular and square gravity-based fish cages with different dimensions under pure current conditions

Two typical gravity-based fish cages with circular and square shapes are modeled in the present study to compare their cage deformations, cultivation volumes drag forces under different pure current conditions. hydrodynamic models, i.e., Morison model Screen model, implemented into a general finite element (FE) solver Code_Aster as new module employed dynamic analyses of cages. Different dimensions (i.e., circumferences design heights) velocities considered comparative study. The numerical results indicate that given same area netting, can gain more volume than cage, especially when initial is larger 100,000 m3. has slightly force per cage. This suggests superior for large-scale farms.