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Hydrodynamic performance of a semi-submersible offshore fish farm with a single point mooring system in pure waves and current

文献类型： 外文期刊

作者： Huang, Xiao-Hua 1 ; Liu, Hai-Yang 2 ; Hu, Yu 2 ; Yuan, Tai-Ping 2 ; Tao, Qi-You 2 ; Wang, Shao-Min 2 ; Liu, Zhi-Xin 3 ;

作者机构： 1.Minist Agr, Key Lab Open Sea Fishery Dev, Guangzhou 510300, Peoples R China

2.Guangdong Cage Engn Res Ctr, South China Sea Fisheries Res Inst, Guangzhou 510300, Peoples R China

3.Zhuhai Desai Marine Fishery Technol Co LTD, Zhuhai 519005, Peoples R China

关键词： Cultured species; Hydrodynamic performance; Mooring force; Motion response; Offshore fish farm; Semi-submersible

期刊名称：AQUACULTURAL ENGINEERING （ 影响因子：3.281； 五年影响因子：3.727 ）

ISSN： 0144-8609

年卷期： 2020 年 90 卷

页码：

收录情况： SCI

摘要： A physical model of a semi-submersible offshore fish farm with a scale of 1:30 has been tested in a wave-current tank. The mooring force of the fish farm in waves was measured and compared for different single-point mooring arrangements, and henceforth, a safe and reliable mooring form is chosen as the mooring system for the fish farm. On this basis, the tested results for the mooring force, heave, pitch and roll of the fish farm in waves and current are presented, in which the effect of drought was discussed. The performance of blocking water flow for the fish farm in pure current was also evaluated. It has been found that increasing the anchor chain length and adding a sinker suspending from the chain could reduce the mooring force significantly despite the fluctuations in the mooring force. During the experiments, the tested value for the heave and pitch as well as the roll has been small, which indicates that the fish farm has a good stability. The mooring force has become larger, while the heave became smaller as the drought increased. Furthermore, the current velocity inside the fish farm is significantly lower than that of its outside. According to the field test results obtained in the fish farm, the farm exhibited good adaptability and it formed a suitable environment for growing cultured fish.

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