| Cite this article: | 陈小攀.矩形明渠跌水测流研究现状与进展[J].灌溉排水学报,,():-. |
| chenxiaopan.矩形明渠跌水测流研究现状与进展[J].灌溉排水学报,,():-. |
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| [8]HagerWH. Modifield venturi channel [J]. Journal of Irrigation and Drainage Engineering ,1985,111(1): 19-35.[9]Samani Z, MagallanezH. Simple measuring-flume in trapezoidal channel[J].Journal of Irrigation and Drainage Engineering,1993,119(1): 127-129. |
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chenxiaopan
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henan
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| Abstract: |
| Free overfall in rectangular channels could be used as a simple flow measurement. Due to its practical importance in the open channel, many investigators have studied the free overfall in open channels in decade years. This paper presents a comprehensive review of the studies on the free overfall used as the measuring device in open channel both home and abroad. Experimental and theoretical studies of free overfall were evaluated and compared in details, and the latest advances was also introduced. Based on to the main problems in the present researches of free overfall, the direction and significance of the research on free overfall further research is also pointed out in this paper. |
| Key words: hydraulics, free overfall;open channel;flow measurement;End-Depth-Ratio(EDR) |
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