Hits:

Indexed by:会议论文

Date of Publication:2012-01-01

Included Journals:CPCI-S

Abstract:A three-dimensional numerical model combined the Realizable k-epsilon turbulence model and the porous media model is established to simulate the flow field around a fishing net under current. The unknown porous coefficients are determined from the experimental forces on the net and flow velocities and the attack angles using the least square method. Therefore, the porous media act the same water-blocking effect as the net. This numerical model is applied for the simulation of the flow field around a plane net under current and the numerical results are compared with the data obtained by physical model tests. The comparisons show that the velocity magnitude of the numerical simulation agrees well with the experimental data with different attack angles. It is indicated that this numerical model is applicable for the simulation of the flow field around a fishing net. This study can be valuable for better knowledge of the flow characteristics around fishing net cage.