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| 水平轴风力机失速模型及对比验证 |
| Application and comparison of stall models of the horizontal axis wind turbine |
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| DOI： |
| 中文关键词: 动量-叶素理论 气动性能 失速模型 |
| 英文关键词:BEM aerodynamics stall model |
| 基金项目: |
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| 摘要点击次数: 4232 |
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| 中文摘要: |
| 风力机叶片旋转产生的失速延迟效应使建立在二维流动假设基础上的动量-叶素理论（BEM）不再适用，因此需要对BEM进行修正。目前最常用的Du & Selig模型、Chaviaropoulos & Hansen模型和Snel模型对失速延迟区域的升力系数和阻力系数进行了修正。运用上述三种失速模型对UAE Phase VI风力机进行气动性能计算，将计算结果与NASA-Ames风洞实验数据进行对比，验证各失速模型的优缺点及适用范围。 |
| 英文摘要: |
| The Blade Element Momentum (BEM) theory is based on a 2D-flow hypothesis and is not applicable to the genuine 3D condition of the horizontal axis wind turbine (HAWT) because of the effect of stall-delay, and it consequently needs to be modified. The most common used models, such as Du & Selig, Chaviaropoulos & Hansen and Snel, have proved themselves to be effective for modifying the post-stall lift and drag coefficient of HAWT. These models were written into the program of power calculation in this paper. The results from these programs were compared with the 3D measurements of NASA-Ames, and the advantages and shortcomings of each model were analyzed. |
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