ランダム計測されたADCPデータの補間法の開発と流れの三次元構造の抽出

• 椿 涼太

  神戸大学大学院自然科学研究科

• 藤田 一郎

  神戸大学工学部建設学科

• 武藤 裕則

  京都大学防災研究所流域災害研究センター

• 萬矢 敦啓

  国土技術政策総合研究所

書誌事項

タイトル別名

• CORRECTION AND INTERPOLATION OF IRREGULARY MEASURED ADCP DATA AND EXTRACTION OF 3-D FLOW CHARACTER

抄録

The procedure of extraction of three-dimensional distribution of velocity field from ADCP measurement data is presented in this study. Cross-sectional velocity distributions have been generally used to indicate three-dimensional feature of flow. However complex flow fields, generated by combination of a complex bathymetry, curve of the channel and river structure, are difficult to investigate only by using the cross sectional velocity distribution. In this study, anisotropic averaging and interpolation method is introduced to remove random component caused by turbulence of flow and random error of measurement. The continuity correction using pressure equation is also used to reduce both random and system errors. The validity of our procedure is confirmed by using three-dimensional numerical simulation result. Finally, by using our procedure, the complex flow around spur-dikes is explored.

収録刊行物

• 水工学論文集

  水工学論文集 51 1063-1068, 2007

  公益社団法人 土木学会

キーワード

• ADCP
• data correction
• interpolation
• 3D flow structure
• secondary flow
• river flow measurement

詳細情報

• CRID: 1390001205169772928
• NII論文ID: 130003842360
• DOI: 10.2208/prohe.51.1063
• ISSN: 18849172
• ISSN: 09167374
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可