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.
[1]张运洲, 白建华, 辛颂旭. 我国风电开发及消纳相关重大问题研究[J]. 能源技术经济, 2010, 22(1): 1-6. ZHANG Yunzhou, BAI Jianhua, XIN Songxu. Study on the key issues concerning development and consumption of wind power in China[J]. Energy technology and economics, 2010, 22(1): 1-6.(in Chinese)[2]莫勋. 影响西北区域风电产业发展的几个问题[J].能源技术经济, 2010, 22(10):7-11. MO Xun. Several issues affecting wind power development in Northwest China[J]. Energy technology and economics, 2010, 22(10):7-11.(in Chinese)[3]刘万琨, 张志英, 李银凤,等. 风能与风力发电技术[M]. 北京:化学工业出版社, 2007.[4]戴庚, 徐璋, 皇甫凯林,等. 垂直轴风力机研究进展[J]. 流体机械, 2010, 38(10):39-43. DAI Geng, XU Zhang, HUANGPU Kailin,et al. Recent research progress in the vertical axis wind turbine[J]. Fluid machinery, 2010, 38(10): 39-43.(in Chinese)[5]朱春建,胡丹梅,杜朝辉.水平轴风力机三维气动特性实验[J].电力与能源,2005,26(3):93-96. ZHU Chunjian, HU Danmei, DU Zhaohui. Aerodynamic characteristics experiments on horizontal axis wind turbine[J]. Energy technology, 2005, 26(3): 93-96.(in Chinese)[6]祝贺, 徐建源, 滕云, 等. 风力机风轮气动性能三维流场数值模拟[J]. 中国电机工程学报, 2010, 30(17): 85-90. ZHU He,XU Jianyuan,TENG Yun, et al. 3D flow field numerical aerodynamic performance test of wind turbine rotor[J]. Proceedings of the CSEE, 2010, 30(17): 85-90.(in Chinese)[7]SEDAGHAT A, MIRHOSSEINI M. Aerodynamic design of a 300 kW horizontal axis wind turbine for province of Semnan[J]. Energy conversion & management, 2012, 63(6):87-94.[8]CHOI N J, SANG H N, JEONG J H, et al. Numerical study on the horizontal axis turbines arrangement in a wind farm: effect of separation distance on the turbine aerodynamic power output[J]. Journal of wind engineering & industrial aerodynamics, 2013, 117(117):11-17.[9]ABDELSALAM A M, RAMALINGAM V. Wake prediction of horizontal-axis wind turbine using full-rotor modeling[J]. Journal of wind engineering & industrial aerodynamics, 2014, 124(7):7-19.[10]ABDELSALAM A M, BOOPATHI K, GOMATHINAYAGAM S, et al. Experimental and numerical studies on the wake behavior of a horizontal axis wind turbine[J]. Journal of wind engineering & industrial aerodynamics, 2014, 128(128):54-65.[11]LEE H M, WU Y. An experimental study of stall delay on the blade of a horizontal-axis wind turbine using tomographic particle image velocimetry[J]. Journal of wind engineering & industrial aerodynamics, 2013, 123(4):56-68.[12]MORTAZAVI S M, SOLTANI M R, MOTIEYAN H, et al. A Pareto optimal multi-objective optimization for a horizontal axis wind turbine blade airfoil sections utilizing exergy analysis and neural networks[J]. Journal of wind engineering & industrial aerodynamics, 2015, 136(136):62-72.[13]孔屹刚,徐大林,顾兆丹,等. 水平轴风力机变桨载荷分析与计算[J]. 江苏大学学报(自然科学版), 2010, 31(6): 635-639. KONG Yigang,XU Dalin,GU Zhaodan,et al.Analysis and calculation of variable pitch load for horizontal axis wind turbine[J]. Journal of Jiangsu University(natural science edition), 2010, 31(6): 635-639.(in Chinese)[14]王树杰, 盛传明, 袁鹏, 等. 潮流能水平轴水轮机湍流模型研究初探[J]. 中国海洋大学学报, 2014, 44(5): 95-100. WANG Shujie, SHENG Chuanming,YUAN Peng, et al. A study on turbulence models of horizontal axis tidal current turbines[J]. Periodical of Ocean University of China, 2014, 44(5): 95-100.(in Chinese)[15]WANG Qiang, ZHOU Hu,WAN Decheng. Numerical simulation of wind turbine blade tower interaction[J]. Journal of marine science and application,2012,11(3):321-327.