Measurement and Modelling of Tip Vortex Paths in the Wake of a HAWT under Yawed Flow Conditions
Measurement and Modelling of Tip Vortex Paths in the Wake of a HAWT under Yawed Flow Conditions
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DOI：
10.2514/6.2005-590
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发表时间：
2005-01
期刊：
影响因子：
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通讯作者：
W. Haans;T. Sant;G. Kuik;G. Bussel
中科院分区：
文献类型：
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作者：
W. Haans;T. Sant;G. Kuik;G. Bussel
用定量流动显示技术测量了模型旋翼在轴向流动和偏航两种情况下尾迹中的叶尖涡位。对于每种设置，轴向力系数也是通过测量得出的。结果似乎与之前在代尔夫特理工大学模型转子上发表的结果很好地吻合。主要目的是确定叶尖涡距、尾迹倾斜角和尾迹扩展，并对数据进行物理解释。研究结果还应有助于验证和构建模型。尖端涡位置数据补充了现有热线风速仪的倾斜尾流速度数据，使其成为一个有价值的实验数据库。
Tip vortex locations have been measured in the wake of a model rotor in both axial flow and yaw using quantitative flow visualisation. For each setting, the axial force coefficient has been derived as well from measurements. The results seem to agree well with those previously published on the Delft University of Technology model rotor. The main interest is to determine the tip vortex pitch, wake skew angle and wake expansion and to physically interpret the data. The results should also help to validate and construct models. The tip vortex locations data complement the existing skewed wake velocity data from hot-wire anemometry, making it a valuable experimental database.