開水路壁面せん断力のPTVによる計測 Measurement of Wall Shear Stresses of Open-Channel Flow by PTV

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Wall shear stress distributions of open-channel flows were measured making use of the binary image cross-correlation method (BICC), one of the PTV techniques. Flow fields close to the wall were visualized by a laser light sheet with small tracer particles and the particle images were recorded on a DV format tape using a digital video camera. The images were transferred to a personal computer as a movie file(an AVI file), divided into a series of bit map files(BMP files), and finally transformed to gray-scale binary data before the PTV analysis. Thousands of consecutive images were successfully captured by using this procedure. The shear stresses were estimated from the distributions of turbulence properties very close to the wall. Several estimation methods were compared and their accuracy was discussed in detail.

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  • 可視化情報学会誌 = Journal of the Visualization Society of Japan  

    可視化情報学会誌 = Journal of the Visualization Society of Japan 18, 133-136, 1998-07-01 

    The Visualization Society of Japan

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各種コード

  • NII論文ID(NAID)
    10002675615
  • NII書誌ID(NCID)
    AN10374478
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    09164731
  • NDL 記事登録ID
    4511029
  • NDL 雑誌分類
    ZM35(科学技術--物理学)
  • NDL 請求記号
    Z15-431
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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