Investigation into the shape of a wake of a yawed full-scale turbine [electronic resource]

• Ngôn ngữ: eng
• Ký hiệu phân loại: 621.44 Geothermal engineering
• Thông tin xuất bản: Washington, D.C. : Oak Ridge, Tenn. : United States. Dept. of Energy. Office of Energy Efficiency and Renewable Energy ; Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2018
• Mô tả vật lý: Size: Article No. 032010 : , digital, PDF file.
• Bộ sưu tập: Metadata
• ID: 257286
• Chủ đề: 1. 17 wind energy; 2. Atmospheric boundary layer; 3. Large eddy simulation; 4. Optical radar; 5. Torque

Tóm tắt

In this study, data from a lidar-based field campaign are used to examine the effect of yaw misalignment on the shape of a wind turbine wake. Prior investigation in wind tunnel research and high-fidelity computer simulation show that the shape assumes an increasingly curled shape as the wake propagates downstream, because of the presence of two counter-rotating vortices. The shape of the wake observed in the field data diverges from predictions of wake shape, and a lidar model is simulated within a large-eddy simulation of the wind turbine in the atmospheric boundary layer to understand the discrepancy.