| 风速和翼型弯度对垂直轴风机气动性能的影响 |
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| 引用本文： | 宋晨光,赵振宙,吴国庆,朱维南,刘泽伟.风速和翼型弯度对垂直轴风机气动性能的影响[J].排灌机械工程学报,2018,36(3):243-249. |
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| 作者姓名： | 宋晨光 赵振宙 吴国庆 朱维南 刘泽伟 |
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| 作者单位： | 1.南通大学电气工程学院, 江苏 南通 226019; 2.江苏省风能应用技术工程中心, 江苏 南通 226019; 3.河海大学能源与电气学院, 江苏 南京 210098; 4.南通大学机械工程学院 江苏 南通 226019 |
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| 摘 要： | 为了解风速和翼型弯度对H型垂直轴风机气动性能的影响,选取3种风速(4,8和12 m/s)作为设计工况,以NACA0015,NACA2415,NACA4415和NACA6415 共4种不同弯度翼型作为设计翼型,对某小型H型垂直轴风机进行了二维非定常数值模拟研究,评价指标包括CP-λ曲线、Pa-n曲线和Qa-n曲线3方面.研究结果表明:风速和翼型弯度均对风力机的气动特性有很大影响.风速主要影响风轮的CP(Pa)值、运行叶尖速比的范围和高效运行区的范围,且三者均随风速的增大而增大.翼型弯度影响着风轮的CPmax值、运行叶尖速比的范围、高效运行区的范围、整个运行区的CP(Pa)值、经济性和起动性能等多个方面.但是,风速对翼型弯度的选择基本没有影响.综合考虑各因素,弯度为0~2%的翼型是垂直轴风机最为理想的选择.
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| 关 键 词： | 垂直轴风力机 风速 翼型弯度 气动性能 |
| 收稿时间： | 2017-08-21 |
Effect of wind speed and airfoil camber on aerodynamic performance of vertical axis wind turbines |
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| SONG Chenguang,ZHAO Zhenzhou,WU Guoqing,ZHU Weinan,LIU Zewei.Effect of wind speed and airfoil camber on aerodynamic performance of vertical axis wind turbines[J].Journal of Drainage and Irrigation Machinery Engineering,2018,36(3):243-249. |
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| Authors: | SONG Chenguang ZHAO Zhenzhou WU Guoqing ZHU Weinan LIU Zewei |
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| Institution: | 1.School of Electrical Engineering, Nantong University, Nantong, Jiangsu 226019, China; 2.Jiangsu Engineering Center for Wind Energy Application Technology, Nantong, Jiangsu 226019, China; 3.School of Energy and Electrical Engineering, Hohai University, Nanjing, Jiangsu 210098, China; 4.School of Mechanical Engineering, Nantong University, Nantong, Jiangsu 226019, China |
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| Abstract: | To investigate the effect of wind speed and airfoil camber on the aerodynamic performance of vertical axis wind turbine(VAWT), three wind speeds such as 4, 8 and 12 m/s were specified as the design speeds and four airfoils namely NACA0015, NACA2415, NACA4415 and NACA6415 were selected as the design airfoils. 2D unsteady numerical simulations of a small H-type VAWT with these airfoils under these wind speeds were conducted to assess the CP-λ, Pa-n and Qa-n characteristic curves. The results showed that wind speed and airfoil camber both had a great impact on the aerodynamic performance. Wind speed mainly affects the CP(Pa)value of rotor, range of tip speed ratio and efficient operation region width, which all increase with increasing wind speed. Airfoil camber mainly affects the CPmax value of rotor, range of tip speed ratio, efficient operation region width, CP(Pa)value of rotor, economy and starting performance. However, the wind speed almost has no effect on the determination of airfoil camber. Considering various factors observed, the airfoil with a camber of 0-2% is the best choice for VAWTs. |
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| Keywords: | vertical axis wind turbines wind velocity airfoil camber aerodynamic performance |
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