Image Analysis for Particulate Flow under Oscillatory Sheet-flow Regime

• HARADA Eiji

  Kyoto University

• GOTOH Hitoshi

  Kyoto University

Bibliographic Information

Other Title

• 振動流下シートフロー状粒子流の内部構造の画像解析
• シンドウ リュウカ シートフロージョウ リュウシリュウ ノ ナイブ コウゾウ ノ ガゾウ カイセキ

Abstract

Interactions between contacting and colliding particles associated with energy dissipation mainly dominate sediment transport under oscillatory sheet-flow regime, where hysteretic-dependent complicated behavior dominates over periodical one due to a change in microscopic particle configuration even under the fully periodically oscillatory external forces. Difference in response time between solid particle and carrier phase to oscillatory flow furnish momentum transfer, resulting phase-dependent particle stress should be estimated to ascertain detail mechanism of the sheet-flow regime. In the present study, particle velocity under oscillatory flow is extracted from video sequence taken through the sidewall, accordingly phase-dependent particle shear stress is revealed.

Journal

• Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)

  Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 70 (2), I_746-I_750, 2014

  Japan Society of Civil Engineers

Keywords

• sediment transport
• sheet-flow
• particulate flow
• image analysis

Details

• CRID: 1390001205321339904
• NII Article ID: 130004706971
• NII Book ID: AA12508551
• DOI: 10.2208/kaigan.70.i_746
• ISSN: 18838944
• ISSN: 18842399
• NDL BIB ID: 025934092
• Web Site: http://id.ndl.go.jp/bib/025934092
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I025934092
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed