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Hydraulics of free overfall in smooth triangular channels
Ain Shams Engineering Journal, 2021 The present study deals with the hydraulic behavior of smooth triangular channels with free overfall in order to obtain useful relationships for the estimation of end depth discharge (EDD) in terms of brink depth (yb), channel side slopes (m) and channel
Karzan Abdullah Muhsin +1 more
doaj +4 more sources
Hydraulics of free overfall in Δ-shaped channels [PDF]
Sadhana - Academy Proceedings in Engineering Sciences, 2002 In this paper, two methods are presented to analyse the free overfall in Δ -shaped (equilateral triangle-shaped) channels. First, the flow upstream of a free overfall from smooth horizontal or mildly sloping Δ -shaped channels is analysed theoretically ...
Subhasish Dey
exaly +5 more sources
Nappe oscillations on free-overfall structures, data from laboratory experiments. [PDF]
Sci Data, 2020 AbstractThis paper presents a dataset obtained from fifty-two laboratory experiments of nappe oscillations on free overfall structures. Data were collected on two complementary experimental setups, each consisting of a linear weir model. The dataset covers test configurations involving varied geometric parameters (i.e.
Lodomez M +6 more
europepmc +6 more sources
Power-law free overfall in subcritical flow regime
Ain Shams Engineering Journal, 2015 Free overfall can be used as a discharge measuring structure by a single measurement of end flow depth. Many theoretical and experimental studies carried out on free overfalls with different cross-section shape, different slope (mild and steep), and ...
Ali R. Vatankhah
doaj +3 more sources
Numerical modeling of laminar free overfall in triangular channels
Ain Shams Engineering JournalDesign of open channel transport and flow measurement systems for highly viscous liquids requires accurate modelling of laminar free overfall. In this study, a computational fluid dynamics model was developed to investigate subcritical laminar free ...
Primož Drešar +3 more
doaj +3 more sources
Using the Brink Depth in Discharge Measurement for Inverted Semicircular Open Channels [PDF]
Journal of Engineering Research - Egypt, 2021 A free overfall at the end of an open channel provides a simple means for measuring flow discharge. The semicircular open channel plays a significant role in various applications, and it is of interest to calculate its discharge.
Reham Zeidan +2 more
doaj +1 more source
Estimating the scour depth of slope control structures with sharp-crested weir using artificial intelligence models [PDF]
مهندسی منابع آب, 2023 Introduction: In free overfall spillways, waterfalls over the crown of the spillway almost vertically and impacts the downstream bed of the dams. Due to the high velocity and energy of the flow which impacts the erodible downstream bed, it may cause ...
Shahram Mousavi
doaj +1 more source
Tikrit Journal of Engineering Sciences, 2022 One of the significant problems facing the water resource engineer is calculating the coefficient of roughness for subsequent design calculations of the discharge amount of a channel or river. In this study, experiments were conducted in a semi-circular,
Raad Hoobi Irzooki, Ayad Saoud Najem
doaj +1 more source
Amplified erosion above waterfalls and oversteepened bedrock reaches [PDF]
, 2015 None of the conventional bedrock erosion laws can predict incision immediately upslope of a waterfall lip where the flow is accelerating toward a freefall.
Enzel, Y. +6 more
core +1 more source
Flow in Open Channel with Complex Solid Boundary [PDF]
, 2015 yesA two-dimensional steady potential flow theory is applied to calculate the flow in an open channel with complex solid boundaries. The boundary integral equations for the problem under investigation are first derived in an auxiliary plane by taking the
Ball J. W. +18 more
core +1 more source