Results 31 to 40 of about 146,612 (216)

Uncertainty analysis of discharge coefficient of circular crested weirs

open access: yesApplied Water Science, 2021
The circular crested weir (CCW) has been introduced as weirs having a high discharge coefficient (Cd). The ratio of flow head to the radius of the crest (H/R) is the most important parameter affecting the Cd, that the $${\text{Cd}} \approx a\left( {H/R} \
Abbas Parsaie, Amir Hamzeh Haghiabi
doaj   +1 more source

Discharge coefficient of combined rectangular-triangular weirs using soft computing models [PDF]

open access: yesJournal of Hydraulic Structures, 2023
This study investigates the potential of Adaptive Neuro-fuzzy inference system (ANFIS), M5P, and Gaussian Process regression (GP) approaches to predict discharge coefficient (Cd) of chimney weir with different apex angles.
Hamidreza Abbaszadeh   +4 more
doaj   +1 more source

Using soft computing and machine learning algorithms to predict the discharge coefficient of curved labyrinth overflows

open access: yesEngineering Applications of Computational Fluid Mechanics, 2021
This research aims to estimate the overflow capacity of a curved labyrinth using different intelligent prediction models, namely the adaptive neural-fuzzy inference system, the support vector machine, the M5 model tree, the least-squares support vector ...
Zhenlong Hu   +7 more
semanticscholar   +1 more source

Experimental Study of Discharge Coefficient of U-Shaped Sluice Gate under Free and Submerged Flow Conditions [PDF]

open access: yesJournal of Hydraulic and Water Engineering, 2023
Sluice gates are among the flow control structures that are used to measure and control the flow in water conveyance channels. In this research, the geometrical and hydraulic parameters affecting the discharge coefficient of the sluice gate (U-shaped ...
F. Dehghani   +2 more
doaj   +1 more source

Predicting the discharge coefficient of oblique cylindrical weir using neural network techniques

open access: yesArabian Journal of Geosciences, 2021
Cylindrical weir shapes offer a steady-state overflow pattern, where the type of weirs can offer a simple design and provide the ease-to-pass floating debris.
Adnan A. Ismael   +3 more
semanticscholar   +1 more source

Determination of discharge coefficient in the tilted crown sharp-crested weirs [PDF]

open access: yesJournal of Applied Research in Water and Wastewater, 2022
In this study, the performance of vertical and tilted crown weirs with different angles of the weir crest across the flow has been investigated using numerical and experimental models.
Salma Ajeel Fenjan   +2 more
doaj   +1 more source

Comparative study of experimental and CFD analysis for predicting discharge coefficient of compound broad crested weir

open access: yesWater supply : the review journal of the International Water Supply Association, 2021
Present study highlights the behavior of weir crest head and width parameter on the discharge coefficient of compound broad crested (CBC) weir. Computational fluid dynamics model (CFD) is validated with laboratory experimental investigations.
Ketaki H. Kulkarni, G. Hinge
semanticscholar   +1 more source

An ISaDE algorithm combined with support vector regression for estimating discharge coefficient of W-planform weirs

open access: yesWater supply : the review journal of the International Water Supply Association, 2021
Various shapes of weirs, such as rectangular, trapezoidal, circular, and triangular plan forms, are used to adjust and measure the flow rate in irrigation networks.
S. Emami   +3 more
semanticscholar   +1 more source

Investigation of discharge coefficient of trapezoidal labyrinth weirs using artificial neural networks and support vector machines

open access: yesApplied Water Science, 2019
Weirs are a commonly used system to adjust water surface level and to control the flow in canals and hydraulic structures. Labyrinth weirs are a type of weirs that can pass through a certain amount of flow which has a lower upstream water level than the ...
R. Norouzi, R. Daneshfaraz, A. Ghaderi
semanticscholar   +1 more source

Characteristics of flow through orifice-meter [PDF]

open access: yesJES: Journal of Engineering Sciences
Flow measurements in pipes and open channels are critical for successful water resource management as the economic value of water has increased. Orifice meters are typically used as flow-measuring devices in pipes because they are cheap and simple ...
Mohamed Assran   +2 more
doaj   +1 more source

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