| Wang Xudong (王旭东),Xia Hongjun.[J].高技术通讯(英文),2014,20(4):442~445 |
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| Functional design of wind turbine airfoils based on roughness sensitivity characteristics |
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| DOI：10.3772/j.issn.1006-6748.2014.04.016 |
| 中文关键词: |
| 英文关键词: wind turbine airfoils, integrated expression, lift-drag ratio, roughness sensitivity, function design |
| 基金项目: |
| Author Name | Affiliation | | Wang Xudong (王旭东) | | | Xia Hongjun | |
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| 中文摘要: |
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| 英文摘要: |
| To improve aerodynamic performance of wind turbine airfoils, the shape profile characteristic of the airfoil is investigated. Application of conformal transformation, one functional and integrated expression of wind turbine airfoils is presented. Using the boundary layer theory, the aerodynamic model with roughness of wind turbine airfoils is introduced by studying flow separation around the airfoil. Based on the shape expression and aerodynamic performance of airfoils, the function design of wind turbine airfoils is carried out that the maximum lift-drag ratio and low roughness sensitivity are designed objects. Three wind turbines airfoils with different thickness are gained which are used at tip part of blades. As an example, the aerodynamic performance of one designed airfoil with relative thickness of 15% is simulated in different conditions of clean surface, rough surface, laminar flow and turbulent flow. The comparison of aerodynamic performance between the designed airfoil and one popular NACA airfoil is completed which can verify the better performance of the designed airfoil and reliability of the designed method. |
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