EXPERIMENTAL STUDY OF OPEN CHANNEL FLOW WITH GROINS
Hydraulic structures, such as pile dikes, groins, splitting dikes, have been constructed in natural rivers to improve the channel stability to bank or bed erosions by reducing flow velocity or changing flow direction. In order to produce better river environments, river flow mechanisms with the hydraulic structures need to be intensively studied. In this paper, an experimental flow field with non-overflow groins in a straight rigid-boundary channel was produced, and the characteristics of the flow with groins positioned in stagger were also investigated by measuring 2 dimensional flow velocity fields. The experiment showed that the maximum velocity appeared at the downstream from a groin for the two-fifths of the distance between groins, and reattachment points appeared at the downstream for the four-fifths of the distance between groins.
Nature-oriented river works groin open channel flow meandering river in stagger
Zupeng Gu Syunsuke Ikeda
Department of Civil Engineering, Tokyo Institute of Technology, O-okayama 2-12-1, Meguro, Tokyo152-8552,Japan
国际会议
第16届亚太地区国际水利学大会暨第3届水工水力学国际研讨会(16th IAHR-APD Congress and 3rd Symoposium of IAHR-ISHS)
南京
英文
1951-1956
2008-10-20（万方平台首次上网日期，不代表论文的发表时间）