翼型上のShort Bubble内部に生ずる低周波数速度変動に関する実験的研究 Experimental Studies of Low Frequency Velocity Disturbances Observed in Short Bubble Formed on Airfoil

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Experimental Studies have been conducted to investigate velocity disturbances observed inside the short bubble formed on NACA0012 airfoil. Measurements were done at the angle of attack 10<SUP>°</SUP> and at the Reynolds number of 1.3×10<SUP>5</SUP> based on the chord length. In the transition area in the short bubble, a dominant low frequency velocity fluctuation was observed. This frequency is much lower than that reported in the previous short bubble measurements. The phase averaging technique has been applied to analyze this low frequency velocity fluctuation. It is shown that the direction and the amount of the flow velocity vector inside the separated layer just after the separation point changes periodically. The frequency of these behaviors agrees with the observed low frequency velocity fluctuation.

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  • 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 50(582), 293-300, 2002-07-05

    一般社団法人 日本航空宇宙学会

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被引用文献:  6件中 1-6件 を表示

各種コード

  • NII論文ID(NAID)
    10008967925
  • 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
    6222764
  • 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  CJP引用  NDL  J-STAGE 
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