Flow Characteristics in a Gradually Expanded Rectangular Open Channel Flow

• URA Masaru

  九州工業大学工学部設計生産工学科

• AKIYAMA Juichiro

  九州工業大学工学部設計生産工学科

• KAWASAKI Junichiro

  九州工業大学大学院工学研究科博士前期課程

• ONITSUKA Kouki

  九州工業大学工学部設計生産工学科建設コース

Bibliographic Information

Other Title

• 漸拡長方形断面開水路流の流況変化について
• 開水路流の急拡部の拡大率がオイカワの休憩特性に及ぼす影響
• カイスイロリュウ ノ キュウカクブ ノ カクダイリツ ガ オイカワ ノ キュウケイ トクセイ ニ オヨボス エイキョウ

Abstract

This study is concerned with flow chracteristics in a gradually expanding smooth rectangular open channel. The spatially evolution of mean velocity-, Reynolds stress-, and turbulent intensity-profiles in the longitudinal direction were investigated experimentally. Cole's wake parameter is expressed as a function of the pressure gradient, assuming the entire mean velocity profiles to be described by Cole's law. It is found that the distributions of Reynolds stress and turbulent intensities under the adverse pressure gradient differ substantially from these in the favorable pressure gradient.

Journal

• PROCEEDINGS OF HYDRAULIC ENGINEERING

  PROCEEDINGS OF HYDRAULIC ENGINEERING 36 379-384, 1992

  Japan Society of Civil Engineers

Keywords

• turbulence
• open channel flow
• pressure gradient

Details

• CRID: 1390001205170082688
• NII Article ID: 130004041929
• NII Article ID: 130006406246
• NII Book ID: AN10426673
• ISSN: 18808751
• ISSN: 18849172
• ISSN: 2185467X
• ISSN: 09167374
• DOI: 10.2208/prohe.36.379
• DOI: 10.2208/jscejhe.73.i_379
• NDL BIB ID: 028108333
• Web Site: http://id.ndl.go.jp/bib/028108333
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I028108333
• Web Site: https://www.jstage.jst.go.jp/article/jscejhe/73/4/73_I_379/_pdf
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed