軸流ファンの動翼後縁近傍のカルマン渦の挙動に関する研究 Behavior of Vortex Shedding from Trailing Edge of Rotor Blade of Axial Flow Fans

この論文にアクセスする

この論文をさがす

著者

抄録

In the present paper the attention is focused on the characteristics of Karman vortex shedding from the trailing edge ofthe rotor blade at the design operating attack angle for different Reynolds number. We measured the local relative velocity,velocity fluctuation, and spectrum in the near wake of rotor blade. The periodic velocity fluctuation in the near wake of theblade was observed at Reynolds number, based on the tip chord length, of 5.1×10<SUP>4</SUP>. This was caused by Karman vortexshedding from the trailing edge of the blade at constant frequency along spanwise direction. However, as Reynolds numberincreased, the spectrum of velocity fluctuation became broad band gradually. At the design operating point, the velocityfluctuation at predicted vortex shedding frequency was also observed in the near wake of the rotor blade momentarilyalthough the intensity and the periodicity of velocity fluctuations became weak.

収録刊行物

  • ターボ機械

    ターボ機械 40(7), 441-447, 2012-07-10

    Turbomachinery Society of Japan

参考文献:  5件中 1-5件 を表示

各種コード

  • NII論文ID(NAID)
    10030767736
  • NII書誌ID(NCID)
    AN00004836
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    03858839
  • NDL 記事登録ID
    023857787
  • NDL 請求記号
    Z16-978
  • データ提供元
    CJP書誌  NDL  J-STAGE 
ページトップへ