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Experimental Investigation on Hydrodynamic Coefficients of a Column-Stabilized Fish Cage in Waves

文献类型: 外文期刊

作者: Zhao, Yun-Peng 1 ; Chen, Qiu-Pan 1 ; Bi, Chun-Wei 1 ; Cui, Yong 2 ;

作者机构: 1.Dalian Univ Technol, State Key Lab Coastal & Offshore Engn, Dalian 116024, Peoples R China

2.Pilot Natl Lab Marine Sci & Technol Qingdao, Qingdao 266237, Shandong, Peoples R China

3.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Qingdao Key Lab Marine Fish Breeding & Biotechnol, Qingdao 266071, Shandong, Peoples R China

关键词: column-stabilized fish cage; horizontal wave force; least squares method; hydrodynamic coefficient

期刊名称:JOURNAL OF MARINE SCIENCE AND ENGINEERING ( 影响因子:2.458; 五年影响因子:2.455 )

ISSN:

年卷期: 2019 年 7 卷 11 期

页码:

收录情况: SCI

摘要: This study on hydrodynamic coefficients of a column-stabilized fish cage under wave action plays an important role in the anti-wave design of cages. The regular wave test was used to study the horizontal wave force of the jacket and column-stabilized fish cage under different wave heights, periods, and incident angles; the finite element model of the jacket and the column-stabilized fish cage was established according to the test model. On the basis of the calculation of the finite element model, combined with the wave force obtained from the experiment, the hydrodynamic coefficients of the structure was fitted by the least squares method, and then the drag force, inertial force, and total force of the structure under different conditions were calculated. The results show that the hydrodynamic coefficients of the jacket and netting under the wave condition were more obvious with the change of the KC number and wave incident angles. And as the wave height increased, the drag force, the inertial force, and the proportion of the drag force to the horizontal wave force both increased. When the wavelength was large, the same trend occured as the wave period increased. When the wave incident angles were different, the forces of the jacket and the column-stabilized fish cage were always small in lateral low-frequency waves, which is consistent with the change law of hydrodynamic coefficients of the jacket and netting.

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