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Current and turbulence measurements at the FINO1 offshore wind energy site: analysis using 5-beam ADCPs

机译：FINO1海上风能站点的电流和湍流测量：使用5束ADCP的分析

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摘要

We report concurrent measurements of ocean currents and turbulence at two sites in the North Sea, one site at upwind of the FINO1 platform and the other 200-m downwind of the Alpha Ventus wind farm. At each site, mean currents, Reynolds stresses, turbulence intensity and production of turbulent kinetic energy are obtained from two bottom-mounted 5-beam Nortek Signature1000s, high-frequency Doppler current profiler, at a water depth of approximately 30 m. Measurements from the two sites are compared to statistically identify the effects of wind farm and waves on ocean current variability and the turbulent structure in the water column. Profiles of Reynolds stresses are found to be sensible to both environmental forcing and the wind farm wake-induced distortions in both boundary layers near the surface and the seabed. Production of turbulent kinetic energy and turbulence intensity exhibit approximately similar, but less pronounced, patterns in the presence of farm wake effects.
机译：我们报告同时测量北海的两个地点的洋流和湍流，其中一个地点位于FINO1平台的上风，而另一个地点位于Alpha Ventus风电场的下风200 m。在每个位置，从两个底部安装的5束Nortek Signature1000s高频多普勒电流剖面仪获得平均水流，雷诺应力，湍流强度和湍动能的产生，水深约为30 m。比较了两个地点的测量结果，以统计学方式确定风电场和波浪对洋流变化和水柱中湍流结构的影响。发现雷诺应力的分布对环境强迫和风电场尾迹在地表和海床附近的两个边界层中引起的变形都是敏感的。在存在农场尾流效应的情况下，湍动能和湍流强度的产生显示出近似相似但不太明显的模式。

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