Conference Paper 低レイノルズ数条件下での改良型石井翼型の流体計算と性能評価

青野, 光  ,  立川, 智章  ,  安養寺, 正之  ,  涌井, 翔太郎  ,  濱田, 大生  ,  Aono, Hikaru  ,  Tatsukawa, Tomoaki  ,  Anyoji, Masayuki  ,  Wakui, Shotaro  ,  Hamada, Daiki

This paper conducts two-dimensional numerical flow simulations around an improved Ishii airfoil under low Reynolds number flow conditions. The improved Ishii airfoil is proposed in previous efforts and demonstrated better aerodynamic performance in comparison with those of an original Ishii airfoil. At first, numerical results in the cases of angles of attack ranging from -6 degrees to 9 degrees and a chord-based Reynolds number of 20,000 are compared with the experimental data. Results show a fair agreement with the experimental data. Then, Reynolds number effects are studied for the angles of attack at 3 degrees and 6 degrees, respectively. Numerical results present similar trend to that observed in the experiments. Furthermore, it seems that the change of Reynolds number has certain impact on the aerodynamic coefficients when the laminar separation bubble is not observed over the airfoil.
会議情報: 第49回流体力学講演会/第35回航空宇宙数値シミュレーション技術シンポジウム (2017年6月28日-30日. 国立オリンピック記念青少年総合センター), 渋谷区, 東京
形態: カラー図版あり
Meeting Information: 49th Fluid Dynamics Conference /the 35th Aerospace Numerical Simulation Symposium (June 28-30, 2017. National Olympics Memorial Youth Center), Shibuya-ku, Tokyo, Japan
Physical characteristics: Original contains color illustrations

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