A performance comparison of the meta model methods for discharge coefficient prediction of labyrinth weirs

M Majedi-Asl, A Ghaderi, M Kouhdaragh… - Flow Measurement and …, 2024 - Elsevier
Weirs are hydraulic structures with various applications, such as flow measurement, flow
diverting, and/or flow control. Labyrinth weir as a nonlinear weir with a folded crest …

A review of studies on estimating the discharge coefficient of flow control structures based on the soft computing models

M Haghbin, A Sharafati - Flow Measurement and Instrumentation, 2022 - Elsevier
The discharge coefficient (Cd) plays a vital role in the accurate design and safety of weirs,
spillways, and dams. In the last decade, Soft Computing (SC) models, which showed …

A review of hydraulic performance and design methods of labyrinth weirs

AK Idrees, R Al-Ameri - Water Supply, 2022 - iwaponline.com
Labyrinth weirs are complex hydraulic structures. They have been widely used as a water
regulator and to increase discharge in channels and spillway dams. Labyrinth weirs are an …

Discharge coefficient prediction of canal radial gate using neurocomputing models: an investigation of free and submerged flow scenarios

H Tao, M Jamei, I Ahmadianfar… - Engineering …, 2022 - Taylor & Francis
In the current study, three machine learning (ML) models, ie Gaussian process regression
(GPR), generalized regression neural network (GRNN), and multigene genetic programming …

LXGB: A machine learning algorithm for estimating the discharge coefficient of pseudo-cosine labyrinth weir

S Emami, H Emami, J Parsa - Scientific Reports, 2023 - nature.com
One of the practical and financial solutions to increase the efficiency of weirs is to modify the
geometry of the plan and increase the length of the weir to a specific width. This increases …

Prediction of discharge coefficient of combined weir-gate using ANN, ANFIS and SVM

A Parsaie, AH Haghiabi… - International …, 2019 - inderscienceonline.com
Flow measurement is an important issue for develo** the water conservation projects and
evaluating the performance of irrigation and drainage networks. Weirs and gates are the …

A novel approach using CFD and neuro-fuzzy-firefly algorithm in predicting labyrinth weir discharge coefficient

S Shafiei, M Najarchi, S Shabanlou - Journal of the Brazilian Society of …, 2020 - Springer
In this paper, for the first time, to model the discharge coefficient of labyrinth weirs, the
evolutionary firefly algorithm (FFA) is used for optimizing the membership functions of the …

Prediction of oxygen transfer at modified Parshall flumes using regression models

NK Tiwari, P Sihag - ISH Journal of Hydraulic Engineering, 2020 - Taylor & Francis
To measure the flow rate in irrigation, sewer, and storm water systems, Parshall flumes (PFs)
and modified Parshall flumes (MPFs) are commonly used. The dissolved oxygen (DO) in …

Enhancing rectangular side weir discharge prediction using stacking technique

S Balahang, M Ghodsian - Flow Measurement and Instrumentation, 2024 - Elsevier
In this paper, the impact of different variables on discharge coefficients in sharp-crested
rectangular side weirs was investigated utilizing 559 experimental data points. Various …

Simulation of bridge pier scour depth base on geometric characteristics and field data using support vector machine algorithm

M Majedi-Asl, R Daneshfaraz… - Journal of Applied …, 2020 - arww.razi.ac.ir
In this paper, two groups of datasets including Froehlich (1988) and USGS were
implemented to simulate scour depth for bridge piers of three shapes (circular, sharp-nose …