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主管单位 中华人民共和国
工业和信息化部
主办单位 哈尔滨工业大学 主编 冷劲松 国际刊号ISSN 0367-6234 国内刊号CN 23-1235/T

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引用本文:朱海天,郝文星,李春,丁勤卫,余万.建筑增强型垂直轴风力机气动特性数值研究[J].哈尔滨工业大学学报,2019,51(1):87-93.DOI:10.11918/j.issn.0367-6234.201802003
ZHU Haitian,HAO Wenxing,LI Chun,DING Qinwei,YU Wan.Numerical investigation on aerodynamic characteristic of building augmented vertical axis wind turbine[J].Journal of Harbin Institute of Technology,2019,51(1):87-93.DOI:10.11918/j.issn.0367-6234.201802003
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建筑增强型垂直轴风力机气动特性数值研究
朱海天1,郝文星1,李春1,2,丁勤卫1,余万1
(1. 上海理工大学 能源与动力工程学院,上海,200093; 2. 上海市动力工程多相流动与传热重点实验室(上海理工大学),上海 200093)
摘要:
为捕获建筑环境中蕴藏丰富的高品质风能,结合高耸建筑的高度优势与建筑扩散体强化风速效应,将垂直轴风力机放置于不同建筑扩散体之间,通过数值模拟的方法研究建筑增强型垂直轴风力机在具有不同实度与不同翼型时的气动特性. 结果表明:建筑扩散体可大幅提升风力机获能效率,建筑增强型垂直轴风力机较原始垂直轴风力机最大风能利用系数提升4.47倍,其最佳尖速比位置向右偏移,但其载荷波动较剧烈,且对建筑外廓敏感,其中圆弧形截面建筑可有效减小建筑分离涡造成的影响. 随着实度的增加,建筑增强型垂直轴风力机风能利用系数先增大后因叶片间干扰而减小,其载荷波动和自启动性在多叶片时得到明显改善. 对于不同系列的翼型,FXLV152翼型有助于减小疲劳累积损伤,最大厚度较大的NACA0021翼型有利于提高风力机的获能效率,S809非对称翼型则不适用于建筑增强型垂直轴风力机. 数值结果为建筑增强型垂直轴风力机的工程应用提供部分参考依据.
关键词:  风力机械与设备  建筑环境  垂直轴风力机  数值模拟  建筑外廓  实度  翼型
DOI:10.11918/j.issn.0367-6234.201802003
分类号:TK83
文献标识码:A
基金项目:国家自然科学基金资助项目(9,1); 上海市科学技术委员会项目资助(13DZ2260900)
Numerical investigation on aerodynamic characteristic of building augmented vertical axis wind turbine
ZHU Haitian1,HAO Wenxing1,LI Chun1,2,DING Qinwei1,YU Wan1
(1.School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China; 2. Shanghai Key Laboratory of Multiphase Flow and Heat Transfer in Power Engineering (University of Shanghai for Science and Technology), Shanghai 200093, China)
Abstract:
To capture the high-quality wind energy in built environment, combined with height advantage of skyscraper and canyon wind effect of building diffuser, the vertical axis wind turbines were mounted between the building diffusers. By the means of numerical simulation, the aerodynamic characteristics of building augmented vertical axis wind turbine with different solidity and different airfoil configuration had been investigated. The results show that the building diffusers can sharply increase the power coefficient of wind turbine. The optimal power coefficient of building augmented wind turbine is 4.47 times higher than the clean one and the optimal tip-speed ratio shifts to the right. But it has intense load fluctuation and it is sensitive to building configuration. The circular configuration can decrease the influence of shedding vortex of buildings. With increasing solidity, the power coefficient of building augmented vertical axis wind turbine increases first and then decreases due to the interference between blades, and the load fluctuation and self-starting have been improved obviously. The FXLV152 airfoil contributes to decrease the fatigue cumulative damage and the NACA0021 airfoil contributes to increase efficiency of wind turbine. However, the S809 airfoil is not appreciated for building augmented vertical axis wind turbines. The numerical results provide a reference for practical application of building augmented vertical axis wind turbines.
Key words:  wind machinery and device  built environment  vertical axis wind turbine  numerical simulation  building configuration  solidity  airfoil

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