Hydrodynamic performance of a pile-restrained WEC-type floating breakwater: An experimental study
Hydrodynamic performance of a pile-restrained WEC-type floating breakwater: An experimental study
复制标题
桩约束WEC型浮动防波堤的水动力性能：实验研究
DOI：
10.1016/j.renene.2016.04.057
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发表时间：
2016-09
期刊：
影响因子：
8.7
通讯作者：
Kang Haigui
中科院分区：
文献类型：
--
作者：
Ning Dezhi;Zhao Xuanlie;Goteman Malin;Kang Haigui
本文介绍了一种将振荡浮标式波浪能转换器与垂直桩约束浮动防波堤集成在一起的系统。在规则波浪作用下的波浪水槽中对该系统的水动力性能进行了初步实验研究。采用电流控制器-磁粉制动系统来模拟发电系统。该设计已根据已发布的结果进行验证。研究了取力器阻尼特性，电流控制器-磁粉制动系统能够很好地模拟（近似）库仑阻尼力。研究了各种参数（包括波周期和波高、系统尺寸和激励电流）对水动力性能的影响。结果表明，动力输出阻尼力、吃水以及浮动防波堤与波长之间的相对宽度对系统的水动力性能有显着影响。可以观察到，通过适当调整取力器阻尼力，系统的捕获宽度比可以达到约24%，同时传输系数保持在0.50以下，浮动防波堤能够有效发挥作用。新概念提供了一种经济高效地利用波浪能的有前途的方法。
In this paper, a system which integrates an oscillating buoy type wave energy converter with a vertical pile-restrained floating breakwater is introduced. A preliminary experimental study on the hydrodynamic performance of the system is carried out in a wave flume under the action of regular waves. A current controller-magnetic powder brake system is used to simulate the power generation system. The design is verified against published results. The power-take off damping characteristics are investigated, and the current controller-magnetic powder brake system can simulate the (approximate) Coulomb damping force very well. The effects of various parameters, including wave period and wave height, dimensions of the system and excitation current, on the hydrodynamic performance are investigated. Results indicate that the power take-off damping force, draft and relative width between the floating breakwater and the wavelength have a significant influence on the hydrodynamic performance of the system. A range can be observed for which the capture width ratio of the system can achieve approximately 24% while transmission coefficient was kept lower than 0.50 with the proper adjustment of power take-off damping force, and the floating breakwater performs in an effective manner. The new concept provides a promising way to utilize wave energy cost-effectively.
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DOI：
10.1061/9780872629332.124
发表时间：
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期刊：
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影响因子：
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通讯作者：
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DOI：
--
发表时间：
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期刊：
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影响因子：
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