Aerodynamic loads of wind turbine blades are often predicted by manufacturers using the blade element momentum (BEM) theory, for which many corrections have been proposed in the literature. The physical impacts of such corrections on field measurements have seldom been assessed because of the relative unavailability of dedicated measurements. Based on the unique full-scale database of the DANAERO project, available through the IEA (International Energy Agency) Task 29, this work incrementally applies on aerodynamic field measurement improvements of the BEM theory: atmospheric boundary layer vertical velocity gradient, neighboring wake, yaw misalignment, wind inflow location, tower shadow effect, cone angles modeling, blade aeroelastic deformation, and dynamic wake. This is performed using the iBEM method (inverse Blade Element Momentum), which back-calculates the aerodynamic coefficients (lift—C_L and drag—C_D) using aerodynamic loads from field tests.

中文翻译：

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分析 DANAERO 风力涡轮机现场数据库以评估不同最先进的叶片元素动量 (BEM) 校正模型的重要性

制造商通常使用叶片元素动量 (BEM) 理论来预测风力涡轮机叶片的空气动力载荷，文献中已对此提出了许多修正。由于专用测量相对不可用，因此很少评估此类校正对现场测量的物理影响。基于 DANAERO 项目独特的全尺寸数据库，可通过 IEA（国际能源机构）Task 29 获得，这项工作逐步应用于 BEM 理论的空气动力场测量改进：大气边界层垂直速度梯度、相邻尾流、偏航未对准、风流入位置、塔影效应、锥角建模、叶片气动弹性变形和动态尾流。这是使用 iBEM 方法（逆叶片元素动量）执行的，Ç_大号和拖拽Ç _d使用从现场试验气动载荷）。