| LI Yucheng,ZHAO Yunpeng,GUI Fukun,TENG Bin,DONG Guohai. 2006. Numerical simulation of the influences of sinker weight on the deformation and load of net of gravity sea cage in uniform flow. Acta Oceanologica Sinica, (3):125－137 |
| Numerical simulation of the influences of sinker weight on the deformation and load of net of gravity sea cage in uniform flow |
| Numerical simulation of the influences of sinker weight on the deformation and load of net of gravity sea cage in uniform flow |
| Received:November 11, 2005 Revised:March 20, 2006 |
| DOI： |
| Key words:sea cage numerical simulation lumped mass method sinker weight |
| 中文关键词: sea cage numerical simulation lumped mass method sinker weight |
| 基金项目: |
| Author Name | Affiliation | E-mail | | LI Yucheng | State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China
R & D Center of Civil Engineering Technology, Dalian University, Dalian 116622, China | Liyuch@dlut.edu.cn | | ZHAO Yunpeng | State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China | | | GUI Fukun | State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China | | | TENG Bin | State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China | | | DONG Guohai | State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China | |
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| Abstract: |
| A numerical model for determining fishing net configuration and load is developed, based on the lumped masses method. The model is used to analyze the influences on the net of gravity sea cage by different sinker weights in uniform flow. The net of gravity sea cage is simulated under different current velocities and sinker weights. In order to verify the validity of the numerical results,model test results made by Lader and Enerhaug are cited and compared with the numerical ones. The results of numerical simulation agree well with the experimental ones and the agreement is within an error range of 13% under different velocities and sinker weights. The numerical results indicate that increasing the sinker weight can effectively reduce the net deformation, but the total drag force on the net will increase accordingly. Results will give references for better knowledge of the hydrodynamic behavior of gravity sea cage. |
| 中文摘要: |
| A numerical model for determining fishing net configuration and load is developed, based on the lumped masses method. The model is used to analyze the influences on the net of gravity sea cage by different sinker weights in uniform flow. The net of gravity sea cage is simulated under different current velocities and sinker weights. In order to verify the validity of the numerical results,model test results made by Lader and Enerhaug are cited and compared with the numerical ones. The results of numerical simulation agree well with the experimental ones and the agreement is within an error range of 13% under different velocities and sinker weights. The numerical results indicate that increasing the sinker weight can effectively reduce the net deformation, but the total drag force on the net will increase accordingly. Results will give references for better knowledge of the hydrodynamic behavior of gravity sea cage. |
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