| Numerical simulation of the influences of sinker weight on the deformation and load of net of gravity sea cage in uniform flow |
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| 作者姓名： | LI Yucheng ZHAO Yunpeng GUI Fukun TENG Bin DONG Guohai |
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| 作者单位： | [1]State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China [2]R＆D Center of Civil Engineering Technology, Dalian University, Dalian 116622, China |
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| 基金项目： | 国家高技术研究发展计划(863计划);高比容电子铝箔的研究开发与应用项目;长江学者计划及大学校科研和教改项目 |
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| 摘 要： | 1IntroductionThe fish farming and aquaculture industry areexpanding and the demand for suitable locations forfish farms is increasing.In the future,more of thefish farms will be located offshore,as the number ofsuitable nearshore locations is limited.Futu…
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| 关 键 词： | 海洋 数值模拟 集总模型 渔业资源 水产捕捞 |
| 收稿时间： | 2005-11-11 |
| 修稿时间： | 2006-03-20 |
Numerical simulation of the influences of sinker weight on the deformation and load of net of gravity sea cage in uniform flow |
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| LI Yucheng,ZHAO Yunpeng,GUI Fukun,TENG Bin,DONG Guohai.Numerical simulation of the influences of sinker weight on the deformation and load of net of gravity sea cage in uniform flow[J].Acta Oceanologica Sinica,2006,25(3):125-137. |
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| Authors: | LI Yucheng ZHAO Yunpeng GUI Fukun TENG Bin and DONG Guohai |
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| Affiliation: | 1.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, China2.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. |
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| Keywords: | sea cage numerical simulation lumped mass method sinker weight |
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