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在风力机叶片气动载荷计算方法方面,CFD方法耗时较长,不适合载荷快速评估的需要。动量叶素理论方法以二维翼型气动数据为依据,结合经验公式进行计算,但无法给出载荷分布的具体信息。为了探索高效、准确的载荷评估方法。本文针对风切变入流条件,采用非定常求解方法进行二维叶片气动模型的载荷计算研究,并与三维计算结果相对比,分析了两种方法对计算结果的影响与各自的适用性。
The CFD method takes longer time to calculate the aerodynamic loads of wind turbine blades and is not suitable for the rapid assessment of loads. Momentum element theory method based on two-dimensional airfoil aerodynamic data, combined with empirical formula to calculate, but can not give specific information on the load distribution. In order to explore efficient and accurate load assessment methods. In this paper, aiming at the inflow condition of wind shear, unsteady solution method is used to calculate the load of two-dimensional blade aerodynamic model. Compared with the three-dimensional calculation results, the influence of the two methods on the calculation results and their applicability are analyzed.