Experiments on aerodynamic characteristics of H-type wind turbine rotor with novel airfoil shape
ZHU Jianyong1,2, LIU Peiqing2*
1.Faculty of Aerospace Engineering, Shenyang Aerospace University, Shenyang, Liaoning 110136, China; 2.Key Laboratory of Fluid Mechanics of Ministry of Education, Beijing University of Aeronautics and Astronautics, Beijing 100191, China
Abstract：In order to improve self-starting capability of H-type wind turbines, a novel airfoil containing just leading edge and one airfoil surface was designed exploratively, and wind tunnel experiments on the wind turbine rotor with this airfoil were carried out to investigate the start-up behavior and power output characteristics at different wind speeds. Effects of Reynolds number and solidity on aerodynamic characteristics of the turbine rotor were clarified. The experimental results indicate the turbine rotor adopting the novel airfoil is capable of self-start at low wind speeds, exhibiting an excellent self-start behavior, especially for the turbine rotor with large solidity. In addition, the turbine rotor with large solidity is mainly driven by the drag and essentially belongs to drag-type wind turbine, but it is subject to a relatively high power coefficient. Considering the self-start behavior and power output characteristics, the proposed airfoil is more suitable for the H-type wind turbine at large solidity.
[1]ROY S,DUCOIN A. Unsteady analysis on the instantaneous forces and moment arms acting on a novel Savonius-style wind turbine[J]. Energy conversion and management,2016,121:281-296.[2]BHUTTA M M A, HAYAT N, FAROOQ A U, et al. Vertical axis wind turbine—a review of various configurations and design techniques[J]. Renewable & sustainable energy reviews, 2012, 16(4):1926-1939.[3]KUMAR A, SAINI R P. Performance parameters of Savonius type hydrokinetic turbine—a review[J]. Renewable & sustainable energy reviews, 2016, 64:289-310.[4]ISLAM M, AMIN M R, TING S K, et al. Aerodynamic factors affecting performance of straight-bladed vertical axis wind turbines[C]//Proceedings of the ASME 2007 International Mechanical Engineering Congress and Exposition,2008:13-23.[5]DOMINY R G, LUNT P, BICKERDYKE A, et al. Self-starting capability of a darrieus turbine[J]. Proceedings of the institution of mechanical engineers part a:journal of power & energy, 2007, 221(1):111-120.[6]WORASINCHAI S, INGRAM G L, DOMINY R G. The physics of H-darrieus turbines self-starting capability: flapping-wing perspective[C]//Proceedings of the ASME Turbo Expo 2012: Turbine Technical Conference and Exposition,2012:869-878..[7]HILL N, DOMINY R, INGRAM G, et al. Darrieus turbines: the physics of self-starting[J].Proceedings of the institution of mechanical engineers part a:journal of power & energy, 2009, 223(1):21-29.[8]ISLAM M, TING D S K, FARTAJ A. Desirable airfoil features for smaller-capacity straight-bladed VAWT[J]. Wind engineering, 2007, 31(3):165-196.[9]李岩,张婷婷,田川公太郎,等. 叶片尾缘加弯板垂直轴风力机转矩特性数值模拟[J]. 东北农业大学学报,2017,48(3):72-79. LI Yan,ZHANG Tingting,TAGAWA K,et al. Numerical simulation on torque characteristics of vertical axis wind turbine with curved plate adding at blade trailing edge[J]. Journal of Northeast Agricultural University,2017,48(3):72-79.(in Chinese)[10]朱建勇,王建明,刘沛清. H型风轮静扭矩特性理论分析及试验研究[J]. 机械工程学报,2017,53(2):150-156. ZHU Jianyong,WANG Jianming,LIU Peiqing. Theoretical analysis and experimental investigation of static torque characteristic for H-darrieus wind turbine[J]. Journal of mechanical engineering,2017,53(2):150-156.(in Chinese)[11]王莹,张海杰,曹阳,等. 螺旋型垂直轴风力机的气动与启动性能研究[J]. 工程热物理学报,2014,35(8):1530-1533. WANG Ying,ZHANG Haijie,CAO Yang,et al. Aerodynamic and starting performance investigation of the spiral vertical axis wind[J]. Journal of engineering thermophysics,2014,35(8):1530-1533.(in Chinese)[12]刘希昌, 莫秋云, 李帅帅,等. 小型垂直轴风力发电机的气动噪声数值模拟与试验验证[J]. 流体机械, 2016, 44(6):11-16. LIU Xichang, MO Qiuyun, LI Shuaishuai,et al. Numerical simulation and analysis of aerodynamic noise based on small vertical axis wind turbine [J]. Fluid machinery,2016, 44(6):11-16.(in Chinese)[13]SHELDAHL R E, FELTZ L V, BLACKWELL B F. Wind tunnel performance data for two-and three-bucket Savonius rotors[J]. Journal of energy, 1978, 2(3):160-164.
