中文摘要：

采用流固耦合方法对Tjaereborg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。

英文摘要：

Three dimensional fluid-structure interaction performances of Tjreborg wind turbine blade in yawed conditions were calculated and analyzed using fluid-structure interaction method. First, the confirmation of grid independence was carried out, and then three dimensional fluid-structure performances of wind turbine blade in coaxial flow and 10° and 30° yawed angles were calculated and analyzed. The results show that output power of wind turbine decreases under yawed conditions, both deformation and stress of blade present asymmetric distribution under yawed conditions, the maximum deformation and stress of blade in yawed conditions are greater than those in coaxial flow.