低レイノルズ数領域におけるNACA0012翼型周り流れ場の三次元化 Three Dimensionalization of the Flow Field around a NACA0012 Airfoil at Low Reynolds Numbers

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Three-dimensional numerical simulation of the flow field around a NACA0012 airfoil at Reynolds number 10,000 was carried out to clarify three-dimensionalization process of the flow field around the airfoil at 7 degrees of angle of attack. The simulation results show a primary instability in a laminar separation bubble on the suction side which leads to subsequent nonlinear equilibrium. The feature of the most amplified velocity fluctuation was in good agreement with that predicted by the linear stability theory of free shear layer. The secondary instability begins near the end of the separation bubble which induces spanwise deformation of the boundary layer; thereby three-dimensionalization of the flow field breaks out.

収録刊行物

  • 日本航空宇宙学会論文集 = Journal of the Japan Society for Aeronautical and Space Sciences

    日本航空宇宙学会論文集 = Journal of the Japan Society for Aeronautical and Space Sciences 59(692), 244-251, 2011-09-05

    一般社団法人 日本航空宇宙学会

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各種コード

  • NII論文ID(NAID)
    10030274895
  • NII書誌ID(NCID)
    AA11307372
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    13446460
  • NDL 記事登録ID
    11240003
  • NDL 雑誌分類
    ZN25(科学技術--運輸工学--航空機・ロケット)
  • NDL 請求記号
    Z74-B503
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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