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Indexed by:期刊论文

Date of Publication:2013-04-01

Journal:OCEAN ENGINEERING

Included Journals:SCIE、EI

Volume:62

Page Number:25-37

ISSN No.:0029-8018

Key Words:Fishing plane net; Flow field; Porous media model; Numerical simulation

Abstract:A three-dimensional (3D) numerical model is established to simulate the flow field around fishing plane nets in a current. The realizable k-epsilon turbulence model was chosen to describe the flow, and the governing equations are solved by using the finite volume method. In this model, the net is modeled using the porous media model. The unknown porous coefficients are determined from the hydrodynamic forces on the net and from the flow velocities and the attack angles using the least squares method. In order to validate the numerical model, the numerical results were compared with the data obtained from two physical model tests. The comparisons show that the numerical results are in good agreement with the experimental data. This numerical model is applicable for the simulation of the flow field around a fishing net. Using the proposed method, this paper presents the flow field around a plane net with different plane net inclination angles, plane net heights, spacing distances between two plane nets and plane net numbers. This study provides information about the flow field around the fishing net cage. (C) 2013 Elsevier Ltd. All rights reserved.