CFD Calculation of Airfoil Characteristics for Performance Prediction of Vertical Axis Wind Turbines in Broad Ranges of Angle of Attack and Reynolds Number

DOI Web Site 8 References
  • INOUE Naoko
    鳥取大学　大学院　工学研究科　機械宇宙工学専攻
  • NISHIMURA Sayaka
    鳥取大学　工学部　応用数理工学科
  • HARA Yutaka
    鳥取大学　大学院　工学研究科　機械宇宙工学専攻
  • SUMI Takahiro
    鳥取大学　大学院　工学研究科　機械宇宙工学専攻

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Other Title
  • 垂直軸風車特性予測のための広迎角範囲・広レイノルズ数範囲における翼型空力特性のCFD計算
  • スイチョクジク カザグルマ トクセイ ヨソク ノ タメ ノ コウゲイカク ハンイ ・ コウレイノルズスウ ハンイ ニ オケル ヨクガタ クウリキ トクセイ ノ CFD ケイサン

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Abstract

Many vertical axis wind turbines(VAWTs)have been recently studied and developed by virtue of the non-directionality of wind. For the design and performance prediction of wind turbines, the blade element momentum(BEM)theory is useful because of its much less computational time than CFD approach. However, when using BEM theory, accurate aerodynamic characteristics of the blade airfoils are needed in order to predict wind turbine performance with high accuracy. In this study, two-dimensional RANS was carried out for NACA 0018 airfoil, which aerodynamic data has been published over broad ranges of angle of attack and Reynolds number, in order to validate the present CFD. Moreover, by using the present CFD results, performance predictions of VAWTs by the BEM theory were carried out, and were confirmed to be improved with respect to small VAWT compared with the aerodynamic data given by other researchers.

Journal

  • Turbomachinery

    Turbomachinery 41 (2), 104-109, 2013

    Turbomachinery Society of Japan

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