稳态偏航状态的风力机风轮气动力研究

Research on the aerodynamic of the wind turbine in the state of steady yaw

根据水平轴风力机的特征参数建立了偏航致动盘的涡流柱面模型,用稳态偏航状态下的叶素动量理论计算出周向诱导流动因数。以Pitt-Peters模型为收敛条件,考虑了风轮的偏航角参数,建立计算水平轴风力机轴向诱导流动因数的计算模型,并用C++语言在VC环境下进行仿真计算,解决了气动设计和性能计算的关键问题,并通过实例验证了仿真过程的可行性。

The tangential flow induction factor was calculated by using the blade element-momentum theory （BEM） for a rotor in steady yaw. The vortex cylinder model of the yawed actuator disc was established according to the parameters of horizontal axis wind turbine characteristics. Considered the yaw angle of wind turbine, the model of axial flow induction factor of horizontal axis wind turbine were established by using the Pitt and Peters model as the convergence condition. The model was simulated in the VC environment by C ＋ ＋ and the key issues of the aerodynamic design and performance calculation were solved. In the end,the simulation process was feasible with the example verification.