131 開水路壁面せん断力のPTVによる計測

• 藤田 一郎

  岐阜大学工学部

• 原 基樹

  アイ・エヌ・エー(株)

• 中島 丈晴

  岐阜大学大学院

書誌事項

タイトル別名

• Measurement of Wall Shear Stresses of Open-Channel Flow by PTV
• カイスイロ ヘキメン センダンリョク ノ PTV ニヨル ケイソク

抄録

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.

収録刊行物

• 可視化情報学会誌

  可視化情報学会誌 18 (Supplement1), 133-136, 1998

  社団法人 可視化情報学会

詳細情報

• CRID: 1390282679596331520
• NII論文ID: 10002675615
• NII書誌ID: AN10374478
• DOI: 10.3154/jvs.18.supplement1_133
• ISSN: 1884037X
• ISSN: 09164731
• NDL書誌ID: 4511029
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4511029
• 本文言語コード: ja
• データソース種別:
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  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可