Distribution of Shear Stress in Oscillatory Sheet-flow Layer by LES

• HARADA Eiji

  Kyoto University

• GOTOH Hitoshi

  Kyoto University

• TSURUTA Naoki

  Kyoto University

Bibliographic Information

Other Title

• 粒子流LESによる振動流下シートフロー層の応力構造の検討
• リュウシリュウ LES ニ ヨル シンドウ リュウカ シートフローソウ ノ オウリョク コウゾウ ノ ケントウ

Abstract

The components of shear stress in the oscillatory sheet-flow layer, especially concerning the inter-granular stress, are considerably unknown field because of difficulty in experimental measurements. In the present study, components of the shear stress in the oscillatory sheet-flow layer have been addressed by the LES for the particulate flow based on the Euler-Lagrange coupling. The inter-granular stress has been calculated from the solid-liquid interaction term. Then the vertical profile of each component of the shear stress has been shown in some phases. Furthermore, the predominant region for collision and contact has been found by considering both the particle concentration related to the interstitial area between particles and the turbulence intensity for particle velocity.

Journal

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

  Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 69 (2), I_556-I_560, 2013

  Japan Society of Civil Engineers

Keywords

• sediment transport
• sheet-flow
• LES
• oscillatory flow

Details

• CRID: 1390001205319045248
• NII Article ID: 40019878538
• NII Article ID: 130004551140
• NII Book ID: AA12508551
• DOI: 10.2208/kaigan.69.i_556
• ISSN: 18838944
• ISSN: 18842399
• NDL BIB ID: 025023084
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I025023084
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed