DPマッチング法による二次元円柱後流の乱流計測 Turbulence Measurement in a Two-Dimensional Wake of a Cylinder by DP Matching Method

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Although the spark tracing method is one of the most classical techniques of flow visualization, the measurement by this technique has been limited to a qualitative observation or to one-dimensional velocity measurement. Recently, the authors of this study have been succeeded in measuring the two-or three-dimensional velocity field by applying the Dynamic Programming matching technique, which has commonly been used in voice recognition, to the images obtained by the spark tracing method. Presently, the well-known turbulent velocity field of a two-dimensional wake of a cylinder has been measured by this technique in order to validate the applicability to the turbulent flow and also to investigate the limit and the necessary condition for the use of this technique. It has been proved that the streamwise components can be measured very accurately but the resolution of the spark images may limit the accuracy of the measurement of the cross-stream velocity components.

収録刊行物

  • 可視化情報学会誌. Suppl.

    可視化情報学会誌. Suppl. 23(1), 225-228, 2003-07-01

    The Visualization Society of Japan

参考文献:  2件中 1-2件 を表示

被引用文献:  2件中 1-2件 を表示

各種コード

  • NII論文ID(NAID)
    10012625238
  • NII書誌ID(NCID)
    AA11907562
  • 本文言語コード
    JPN
  • 資料種別
    SHO
  • ISSN
    09164731
  • NDL 記事登録ID
    6641731
  • 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  CJP引用  NDL  J-STAGE 
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