中文摘要：

基于非线性升力面方法，结合自由尾迹模型与黏性涡核模型，建立了轴向风和偏航风条件下的水平轴风力机气动载荷和尾迹的数值模拟方法。对具有丰富实验数据的NRELPhase VI风力机和Tu Delft风力机进行了数值模拟，将叶片气动力以及尾迹场模拟结果与实验数据进行了对比分析。结果表明，计算方法可以较好地模拟风力机在轴向风与偏航风条件下的叶片气动力和尾迹，是一种具有较高工程精度和计算能力的数值模拟方法。

英文摘要：

A numerical method for simulating the HAWT aerodynamic loads and the wake fields in both axial and yawed flow conditions are set up, based on the nonlinear lifting surface theory combined with the free wake and the viscous vortex core models. It has been validated with NREL Phase VI and TU Delft wind turbines by comparing with the experimental data. It is shown that the method has good capacity and precision for the engineering calculation of the HAWT aerodynamic loads and the wakes in the axial and yawed winds and are satisfied for the request of engineering application.