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采用流固耦合方法对Tj?reborg风力机叶片在偏航工况下的三维流固耦合性能进行计算和分析。首先进行网格无关性验证,在此基础上,对轴向来流和偏航角分别为10°和30°的风力机叶片三维流固耦合性能进行计算和分析。结果表明:风力机偏航运行时风力机输出功率降低;偏航工况下叶片的变形和应力均呈非对称性分布,偏航时风力机最大叶片变形和应力集中情况较轴向来流严重。
The fluid-structure interaction method was used to calculate and analyze the three-dimensional fluid-structure interaction of Tj? Reborg wind turbine blade under yawing conditions. Based on this, the 3D fluid-solid coupling performance of wind turbine blades with axial flow and yaw angle of 10 ° and 30 ° respectively is calculated and analyzed. The results show that the output power of the wind turbine decreases when the wind turbine is yawing. The deformation and stress of the blade are all asymmetric when the wind turbine is yaw. The maximum blade deformation and stress concentration of the wind turbine are more serious than the axial flow .