Results 51 to 60 of about 296 (136)
Local scour due to sediment-carrying free-overfall water jet
, 2012 Results are presented of 80 experiments on the time variation of scour in uniform bed materials due to a sediment-laden free-overfall jet. It was found that the scour hole characteristics (i.e. the depth of scour, the width of the scour hole, the length
Masoud Ghodsian +5 more
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Free overall in circular channels with flat base: a method of open channel flow measurement
, 2002 A free overfall at the end of an open channel offers a simple means of measuring flow discharge. In this paper, two methods are presented for the computation of end-depth and discharge of a free overfall from smooth circular channels with flat base ...
Dey, S.
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Mitigation Techniques for Nappe Oscillations on Free-Overfall Structures
, 2019 peer reviewedNappe oscillation is a phenomenon that can have an undesirable impact to the local environmental (e.g., nearby residences, parks) as the phenomenon has been observed to produce a significant level of noise caused by acoustic pressure waves ...
Erpicum, Sébastien +3 more
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DSIF modulates RNA polymerase II occupancy according to template G + C content. [PDF]
NAR Genom Bioinform, 2022 Deng N +7 more
europepmc +1 more source
, 1937 Photograph of of an overfall in s small pasture gully showing how the water tends to cut in soil unprotected by vegetation. This pasture is coverd with a good sod and the water running off is clear, almost free of silt.
Hufnagle, Richard W.
core
Treatment of the railway freight wagon wash effluents by coagulation methods on accelator reactor. [PDF]
J Environ Health Sci Eng, 2021 Żak S, Rauckyte-Żak T.
europepmc +1 more source
, 2014 A free overfall at the end of the channel is used as a flow measuring device. In this paper, theoretical end depth ratio (EDR) and end depth discharge (EDD) relationships have been studied and obtained for subcritical flow in a rectangular channel with a
Mohammed, Ahmed Y.
core
, 2021 Many works have considered two-dimensional free-surface flow over the edge of a plate, forming a waterfall, and with uniform horizontal flow far upstream.
Vanden-Broeck, Jean-Marc +3 more
core
Study on Flow Structures of Free Overfall
, 2014 本研究以模型實驗方式針對不同高度之單階消能工，並以簡化之二維自由跌水流場作為探討範圍，利用四光束二維光纖雷射杜普勒測速儀與質點影像測速儀，進行非接觸式量測實驗，藉由精密儀器之量測結果，探討流場的特性及變化；並且使用高解析度之相機，拍攝流場可視化相片作為定性觀察，確實了解流場內流體運動型態與水墊區內的渦流分佈情形，以作為未來探討多階梯跌水工消能機制之參考；文中對於單階跌水的流場現象觀察、水墊區內的迴流量、消能效益的分析、底床邊壁的剪力分佈、瞬時流場的的速度向量分析等，均有詳細務實的探討。The ...
孫洪福
core
A Flow-Measuring Algorithm of Arc-Bottomed Open Channels through Multiple Characteristic Sensing Points of the Flow-Velocity Sensor in Agricultural Irrigation Areas. [PDF]
Sensors (Basel), 2020 Han Y, Han Y, Li T, Wang S, Chen J.
europepmc +1 more source