Numerical simulation of the interaction between flow and flexible nets |
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| Institution: | 1. State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China;2. Marine Science and Technology School, Zhejiang Ocean University, Zhoushan 316000, China;1. State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China;2. Environmental Sciences and Technology College, Dalian Maritime University, Dalian 116026, China;1. State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China;2. Civil Engineering, Dalian Ocean University, Dalian 116023, China;1. Department of Civil and Environmental Engineering, Norwegian University of Science and Technology, Høgskoleringen 7a, NO-7491 Trondheim, Norway;2. Chair of Ocean Engineering, University of Rostock, Albert-Einstein-Straße 2, D-18059 Rostock, Germany;1. State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian, 116024, China;2. National Marine Hazard Mitigation Service, State Oceanic Administration, Beijing, 100000, China;1. State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China;2. Australian Maritime College, University of Tasmania, 1 Maritime Way, Launceston, TAS 7250, Australia;3. School of Engineering, Edith Cowan University, 270 Joondalup Drive, Perth, 6027 WA, Australia |
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| Abstract: | A numerical approach is proposed to simulate the interaction between flow and flexible nets in steady current. The numerical approach is based on the joint use of the porous-media model and the lumped-mass model. The configuration of flexible nets can be simulated using the lumped-mass model and the flow field around fishing nets can be simulated using the porous-media model. Using an appropriate iterative scheme, the fluid–structure interaction problem can be solved and the steady flow field around flexible nets can be obtained. In order to validate the numerical models, the numerical results were compared with the data obtained from corresponding physical model tests. The comparisons show that the numerical results are in good agreement with the experimental data. Using the proposed numerical approach, this paper presents the flow field around a single flexible net and two flexible nets with a spacing distance. Both the configuration of the flexible nets and the flow velocity results are in accordance with those of the corresponding physical model tests. |
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| Keywords: | Flexible fishing net Flow field Fluid–structure interaction Numerical simulation |
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