| 叶片弯掠对风力机气动性能的影响 |
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| 引用本文： | 沈昕,竺晓程,杜朝辉. 叶片弯掠对风力机气动性能的影响[J]. 工程热物理学报, 2011, 0(9) |
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| 作者姓名： | 沈昕 竺晓程 杜朝辉 |
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| 作者单位： | 上海交通大学机械与动力工程学院; |
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| 基金项目： | 上海市自然基金(No.10ZR1416000); 上海市学科带头人(No.09XD1402100) |
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| 摘 要： | 叶片形状的变化对叶片的气动性能有着显著的影响,采用合理的叶片形状可以有效地提高叶片的气动性能。本文采用带自由尾迹的升力面法,研究了风力机叶片的弯掠对风力机整体气动性能的影响。预测结果显示采用前后掠的叶片在一定程度上改变风力机的风能利用系数。使用后掠叶片使叶片在中后段部分所受升力小于前掠叶片上对应升力,而在叶片前端所受升力大于前掠叶片上对应升力,同时使用后掠叶片将在一定程度上增加风力机风能利用系数,而使用前掠叶片则减少风力机风能利用系数。采用上弯或下弯形式的叶片同样也会在一定程度上提高风力机的风能利用系数。
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| 关 键 词： | 弯掠叶片 升力面法 水平轴风力机 |
The Influence of the Swept and Leaned Blade to the Aerodynamic Performance of Horizontal Axis Wind Turbine |
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| SHEN Xin ZHU Xiao-Cheng DU Zhao-Hui. The Influence of the Swept and Leaned Blade to the Aerodynamic Performance of Horizontal Axis Wind Turbine[J]. Journal of Engineering Thermophysics, 2011, 0(9) |
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| Authors: | SHEN Xin ZHU Xiao-Cheng DU Zhao-Hui |
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| Affiliation: | SHEN Xin ZHU Xiao-Cheng DU Zhao-Hui (School of mechanical Engineering,Shanghai Jiaotong University,Shanghai 200240,China) |
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| Abstract: | There is an area of interest of improving the aerodynamic performance of horizontal axis wind turbine(HAWT) by choosing the optimal shape of the blade,as the shape of the blade has great influence to the aerodynamic performance of the HAWT.A lifting surface method with free wake model is used to study the impact of swept and leaned blade to the aerodynamic behavior of HAWT in the present work.Results indicate that the aerodynamic performances are in general changed with the sweep of the blade.The backward s... |
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| Keywords: | swept and leaned blade lifting surface method horizontal axis wind turbine |
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