Abstract：The blade is a key component of wind turbines for capturing wind energy, and also affects the overall operating performance directly. In this paper, the aerodynamic characteristics of a small household horizontal axis wind turbine are studied. At first, a three-dimensional geometrical model of that turbine is constructed with UG software. Then, the finite volume method is used to discretize the Navier-Stokes equation and the k-ω SST turbulence model equations, and the second-order upwind scheme and the second-order central difference scheme are applied to the convection and diffusion terms, respectively, SIMPLE is used for the coupling between velocity and pressure. Finally, the aerodynamic characteristics such as power efficiency, moment as well as axial thrust are discussed at different pitch angles. The power and torque coefficients increase firstly and then decrease with increasing tip speed ratio. The maximum power and moment coefficients increase firstly and then decrease with increasing pitch angle, but the maximum axial thrust coefficient gradually reduces with increasing pitch angle. At the same time, the streamlines at different pitch angles are shown and analyzed. Hopefully, the results can provide a reference and guidance for optimization design of horizontal axis wind turbine.
尹锐, 王文全, 闫妍. 不同桨距角某小型水平轴风机的气动性能分析[J]. 排灌机械工程学报, 2016, 34(9): 790-794.
YIN Rui, WANG Wenquan, YAN Yan. Analysis of aerodynamic characteristics of a horizontal axis wind turbine at different pitch angles. Journal of Drainage and Irrigation Machinery Engin, 2016, 34(9): 790-794.
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