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首页> 外文期刊>Proceedings of the International Conference on Coastal Engineering >WAKE EFFECTS BEHIND A FARM OF WAVE ENERGY CONVERTERS FOR IRREGULAR LONG-CRESTED AND SHORT-CRESTED WAVES
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WAKE EFFECTS BEHIND A FARM OF WAVE ENERGY CONVERTERS FOR IRREGULAR LONG-CRESTED AND SHORT-CRESTED WAVES

机译：一组不规则长波和短波的波能转换器的唤醒效应

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The contribution of wave energy to the renewable energy supply is rising. To extract a considerable amount of wave power, Wave Energy Converters (WECs) are arranged in several rows or in a a€?farma€?. WECs in a farm are interacting (e.g. the presence of other WECs influence the operational behaviour of a single WEC) and the overall power absorption is affected. In this paper wake effects in the lee of a single WEC and multiple WECs of the overtopping type, where the water volume of overtopped waves is first captured in a basin above mean sea level and then drains back to the sea through hydro turbines, are studied using the time-dependent mild-slope equation model MILDwave. The wake behind a single WEC is investigated for long-crested and short-crested incident waves. The wake becomes wider for larger wave peak periods. An increasing directional spreading results in a faster wave regeneration and a shorter wake behind the WEC. The wake in the lee of multiple WECs is calculated for two different farm lay-outs, i.e. an aligned grid and a staggered grid, with varying lateral and longitudinal spacing. The wave power redistribution in and behind each farm lay-out is studied in detail using MILDwave. In general, the staggered grid results in the highest overall wave power absorption.
机译：波浪能对可再生能源供应的贡献正在上升。为了提取大量的波浪能，波浪能转换器（WEC）可以排成几排，也可以排成一排。场中的WEC正在交互（例如，其他WEC的存在会影响单个WEC的操作行为），并且总体功耗会受到影响。在本文中，研究了单个WEC和多个超顶型WEC的回风中的尾流效应，其中超顶波的水量首先在平均海平面以上的盆地中捕获，然后通过水轮机排回到海中。使用随时间变化的缓坡方程模型MILDwave。研究单个WEC后面的尾波，以了解长波和短波的入射波。对于较大的波峰时段，尾流变得更宽。方向扩展的增加会导致波再生更快，而在WEC之后的唤醒时间更短。对于两个不同的农场布局，即对齐的网格和交错的网格，具有不同的横向和纵向间距，可以计算出多个WEC的余风。使用MILDwave详细研究了每个农场布局内部和后面的波功率重新分配。通常，交错的栅格会导致最高的总波功率吸收。

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