Experimental Investigations on Hydrodynamic Responses of a Semi-Submersible Offshore Fish Farm in Waves

文献类型： 外文期刊

第一作者： Zhao, Yunpeng

作者： Zhao, Yunpeng;Bi, Chunwei;Liu, Hangfei;Guan, Changtao;Cui, Yong

作者机构：

关键词： semi-submersible; offshore fish farm; hydrodynamic response; mooring line tension; motion response

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 7 期

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收录情况： SCI

摘要： A series of physical model experiments was performed to investigate the hydrodynamic responses of a semi-submersible offshore fish farm in waves. The structural configuration of the fish farm primarily refers to that of the world's first offshore fish farm, Ocean Farm 1, developed by SalMar in Norway. The mooring line tension and motion response of the fish farm were measured at three draughts. The study indicated that the tension on the windward mooring line is greater than that on the leeward mooring line. As the wave height increases, the mooring line tension and motion responses including the heave, surge, and pitch exhibit an upward trend. The windward mooring line tension decreased slightly with increasing draught. The existence of net resulted in approximately 42% reduction in mooring line tension and approximately 51% reduction in surge motion. However, the heave and pitch of the fish farm increased slightly with the existence of net. It was found that the wave parameters, draught, and net have noticeable effect on the hydrodynamic response. Thus, these factors are suggested to be considered in structural designs and optimization to guarantee the ability of the fish farm to resist destruction and ensure safety of workers during intense waves.

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