| Related citation: | Zhaohuang Zhang,Aqeel Muhammad,Jun Zhang,Qing Liu,Weiwei Li,Yuwang Song.Analogy Theory and Application of Pressure Difference of Wind Turbine Blade Profile[J].Journal of Harbin Institute Of Technology(New Series),2020,27(6):72-82.DOI:10.11916/j.issn.1005-9113.19024. |
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| Author Name | Affiliation | | Zhaohuang Zhang | School of Energy Power and Mechanical Engineering, North China Electric Power University, Beijing 102206, China | | Aqeel Muhammad | School of Energy Power and Mechanical Engineering, North China Electric Power University, Beijing 102206, China | | Jun Zhang | School of Energy Power and Mechanical Engineering, North China Electric Power University, Beijing 102206, China | | Qing Liu | School of Energy Power and Mechanical Engineering, North China Electric Power University, Beijing 102206, China | | Weiwei Li | School of Energy Power and Mechanical Engineering, North China Electric Power University, Beijing 102206, China | | Yuwang Song | School of Energy Power and Mechanical Engineering, North China Electric Power University, Beijing 102206, China |
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| Abstract: |
| This paper aims to design an optimized blade for Horizontal Axis Wind Turbine (HWAT). Since airfoil is a basic component of blade design, an optimized airfoil (referred as SJX) was proposed based on the line theory through the weight analogy to pressure distribution of air flow. Its lift, drag, lift-to-drag ratio were compared with those NACA2409-34, NACA2410, and RK40 airfoils by using Profili software at fixed wind velocity and under different angles of attack. The NACA2409-34 airfoil was found to be greatly similar with the SJX airfoil. Based on the Wilson method, blades using SJX and NACA2490-34 airfoils were developed and different performance parameters such as velocity distribution, pressure distribution, and power were compared under variable wind velocities and different angles of attack ranging from -4° to 6° at different radius from the center of rotor using computational fluid dynamics (CFD) in ANSYS FLUENT. Results of the study suggested that the performance of the SJX based airfoil and blade was much more optimized. |
| Key words: wind turbine blade analogy theory of pressure difference airfoil profile lift to drag ratio airfoil design |
| DOI：10.11916/j.issn.1005-9113.19024 |
| Clc Number:TK83 |
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| Descriptions in Chinese: |
| 风力发电叶片翼型型线理论及应用 张照煌，Aqeel Muhammad，张峻，刘青，李魏魏，宋玉旺 （华北电力大学 能源动力与机械工程学院 ，北京 102206） 中文说明：经研究发现，在流动空气与风电叶片相互作用规律的过程中，真空中自由下落的空气团的形态与前后压差作用下流动的空气（风）非常相似；因此，本文提出以重量比拟压差设计风电叶片翼型型线的理论，即：空气团流过风电叶片翼型线的时间最短及应有尽可能多的空气团作用于该翼型线；以此为基础，本文推导出风电叶片翼型型线方程并进行了应用研究；通过从现有翼型库中选取三种相似翼型进行模拟对比，结果表明用本文建立的风电叶片翼型线方程设计的翼型线翼型(“SJX翼型”)在攻角变化时的升力及升力系数较所选取的三种翼型有较大的提升，翼型生阻比亦有小幅提升，且流动空气作用在气动中心的力矩均较大，验证了论文建立的风电叶片翼型线方程设计翼型型线的可行性和有效性，从而为风电叶片翼型型线设计理论的发展提供了新尝试和有益借鉴。 关键词：风力发电叶片；重量比拟压差；翼型型线；生阻比；翼型设计 |
