Results 41 to 50 of about 296 (136)

Brink Depth at Free Overfall – A Review

open access: yesInternational Journal of Engineering Research, 2014
The sudden drop of river bed level is known as Free over fall and acts as a control section. Thus it can be used for the estimation of discharge flowing through the river/stream/open channels. The depth of flow just at the free over fall is known as Brink depth or End depth, by measuring which the discharge can be estimated by correlating it with the ...
Sonali Swetapadma   +2 more
openaire   +1 more source

Impact force on downstream bed of weir by free overfall flow

open access: yes, 2014
According to previous experimental studies on free overfall, the main influencing factors of the local scour downstream of a drop structure were found to be the impact position of the nappe flow and the force striking on the channel bed.
Huang, H.S.   +3 more
core   +1 more source

Experiment on Free Overfall Measuring Flume in Rectangle Canal

open access: yes工程科学与技术, 2015
:In open channels, free overfall is a situation where the flow separates from the rigid bed to form a free nappe due to a sudden drop in the channel bed, the relationship of the end-depth to the critical depth is constant, it could be used as a simple ...
chenxiaopan, 刘超, Lilongguo
doaj  

The free overfall as a flow measuring device

open access: yes, 1970
Flow in an open channel is understood to be flow of a liquid with a free surface. Flow is uniform if no change in depth takes place; the depth occurring at uniform flow is referred to as the normal depth. In a rectangular channel with a free overfall the

core  

GENERAL EDR FOR TRAPEZOIDAL FREE OVERFALL

open access: yes, 1993
Η δυνατότητα να χρησιμοποιηθεί ο καταβαθμός ελεύθερης υδατόπτωσης σαν κατασκευή για τη μέτρηση της παροχής, σε συνδυασμό με την περιορισμένη μέχρι τώρα έρευνα του τραπεζοειδούς καταβαθμού, έδωσαν αφορμή για τη μελέτη αυτή. Στην εργασία αυτή υιοθετείται η
Anastasiadou-Partheniou, E.   +1 more
core  

Numerical simulation of free overfall in a rough channel

open access: yes, 2006
This paper reports the results from a turbulent numerical modelling study on the free overfall in a rectangular channel. A wide range of model parameters (i.e.
Zhang, J. (author)   +2 more
core  

Free overall in open channels: state-of-the-art review

open access: yes, 2002
Seventy years ago, Hunter Rouse observed that a free overfall in rectangular channels could be used as a simple flow measuring device that requires no calibration.
Dey, S.
core   +1 more source

Quasi-theoretical End-depth–Discharge Relationship Based on the Pressure Distribution at the End of Free Overfall for Rough Rectangle Channels

open access: yes工程科学与技术
Flow measurement is an important means for irrigation, efficient allocation of water resources and water diversion management. In the open channel, the overfall is usually applied as a facility connecting the upstream and downstream. When the overfall is
Naiwen LI   +4 more
doaj  

Functional mechanical behavior of the murine pulmonary heart valve. [PDF]

open access: yesSci Rep, 2023
Feng X   +5 more
europepmc   +1 more source

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