EFFECT OF BED LOAD MOTION ON BURSTING PHENOMENA IN OPEN CHANNEL FLOWS

• NEZU Iehisa

  JAPAN SOCIETY OF CIVIL ENGINEERS

• ONITSUKA Kouki

  JAPAN SOCIETY OF CIVIL ENGINEERS

• KURATA Masa-aki

  JAPAN SOCIETY OF CIVIL ENGINEERS

Bibliographic Information

Other Title

• 平坦河床上に発生する bursting 現象に及ぼす掃流砂の影響
• ヘイタン カショウ ジョウ ニ ハッセイ スル bursting ゲンショウ ニ オヨボス ソウリュウサ ノ エイキョウ

Abstract

Turbulence measurements over the flat movable bed with a Laser Doppler Anemometer were conducted in open channel flows, as well as the bed loads were collected and its volume were measured. It is found that, at the near the bed, the contributions to the Reynolds stress become larger and the ratio of RS₄/RS₂ of the magnitude of sweep event to the magnitude of ejection event become smaller with the increase of the bed load transport rates. The bursting period becomes shorter as compare with the one of the non-bed load flow.

Journal

• Doboku Gakkai Ronbunshu

  Doboku Gakkai Ronbunshu 1999 (621), 77-89, 1999-05-21

  Japan Society of Civil Engineers

Keywords

• FLDA
• movable flat bed
• bursting phenomena
• conditional sampling method

Details

• CRID: 1390001205309818496
• NII Article ID: 130003983270
• NII Article ID: 10002529530
• NII Book ID: AN10014020
• DOI: 10.2208/jscej.1999.621_77
• ISSN: 18827187
• ISSN: 02897806
• ISSN: http://id.crossref.org/issn/02897806
• NDL BIB ID: 4747976
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4747976
• Web Site: https://www.jstage.jst.go.jp/article/jscej1984/1999/621/1999_621_77/_pdf
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed