The Downstream Wake Response of Marine Current Energy Converters Operating in Shallow Tidal Flows
The Downstream Wake Response of Marine Current Energy Converters Operating in Shallow Tidal Flows
复制标题
浅潮中运行的海流能量转换器的下游尾流响应
DOI：
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
Bob Shelmerdine
中科院分区：
文献类型：
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作者：
J. Giles;L. Myers;A. Bahaj;Bob Shelmerdine
本文介绍了一项实验研究的结果，调查下游尾流响应的海流能量转换器在不同程度的垂直流动约束。本文调查了深垂直无约束的网站，中深度的网站，并有一个特别强调浅潮汐流网站。浅水潮汐资源可用于部署第一代农场。下游尾流的性质将是确定风电场布局时的关键因素，尾流长度受流深或转子直径与流深之比的严重影响。多孔驱动盘用于模拟海流能量流，声学多普勒流速仪用于绘制下游尾流。长度比的线性比例表明，30- 50 m的中深度站点将产生最短的尾流长度，对于较深和较浅的站点，尾流长度增加。希望这些垂向水流约束与尾流长度的关系，能对潮流场的布局设计有所帮助
This paper presents findings from an experimental study investigating the downstream wake response from marine current energy convertors operating in various degrees of vertical flow constraint. The paper investigates deep vertically unconstrained sites, mid-depth sites and there is a particular emphasis on shallow tidal stream sites. Shallow tidal resources could be utilised for the deployment of first generation farms. The nature of the downstream wake flow will be a critical factor when determining the farm layout and the wake length is heavily influenced by the flow depth or ratio of rotor diameter to flow depth. A porous actuator disk is used to model the marine current energy convertor and an Acoustic Doppler Velocimeter is used to map the downstream wake. Linear scaling of length ratios suggests mid depth sites of 30-50m will produce the shortest wake lengths and for deeper and shallower sites the wake length increases. It is hoped that these relationships between vertical flow constraint and wake length will help with the layout design of tidal stream farms