Near wake flow field measurements of a marine current turbine: Preliminary results
Near wake flow field measurements of a marine current turbine: Preliminary results
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海流涡轮机的近尾流流场测量：初步结果
DOI：
10.23919/oceans.2015.7401874
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
J. Barros
中科院分区：
文献类型：
--
作者：
E. Lust;L. Luznik;K. Flack;J. Barros
需要更先进的模拟工具来预测由于周围环境，包括流入湍流的影响，涡轮机上游运行的影响，自由面的影响，以及表面波的影响，涡轮机在现场经历的负载。这些高级模型需要详细的数据集进行验证。目前，很少有研究着眼于近尾流来提供如此详细的数据。了解这一地区是至关重要的，因为这是最有可能影响涡轮机性能和可靠性的高能现象发生的地方。为此，设计、建造了拖曳水箱粒子图像测速系统(PIV)，并用于测量尺度无关的海流涡轮机尾迹附近的流动。包括的是初步结果，包括一个典型案例和一系列实现的湍流统计数据。
More advanced simulation tools are required to predict the loads experienced by a turbine in situ due to the surrounding environment including the effects of inflow turbulence, the impact of turbines operating upstream, the effect of the free surface, and the impact of surface waves, to name a few. These advanced models require detailed data sets for validation. At this time, few studies have focused on the near wake in an effort to provide such detailed data. It is critical to understand this region because it is where much of the high-energy phenomena occur that is most likely to impact turbine performance and reliability. To this end, a towing-tank particle image velocimetry (PIV) system was designed, built, and used to provide measurements of the flow in the near wake of a scale-independent marine current turbine. Included are preliminary results including a representative case and turbulent statistics for an ensemble of realizations.