Journal ArticleDOI
Performance and Design of Labyrinth Weirs
TLDR
In this paper, the authors describe the results of a program of research on labyrinth weirs that is aimed to provide comprehensive performance and design data, and a mathematical model was constructed and a computer program developed which will predict performance to ± 4% accuracy or better over a wide range of operating conditions.Abstract:
The purpose of the labyrinth weir is to increase the discharge per unit width of channel beyond that usually obtained from a conventional weir under identical head conditions. This is achieved by compressing a large length of crest in concertina form into the space available on site. An increase of discharge ranging up to sixfold or more can be obtained. Described are the results of a program of research on labyrinth weirs that is aimed to provide comprehensive performance and design data. The experimental work covered the effects of all primary parameters affecting performance such as crest length magnification, plan geometry, number of cycles, etc. Parallel with the experimental work a mathematical model was constructed and a computer program developed which will predict performance to ± 4% accuracy or better over a wide range of operating conditions. Finally a simple design method is instilled from the experimental and theoretical results.read more
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Journal ArticleDOI
Discharge coefficient of a rectangular labyrinth weir
TL;DR: A rectangular labyrinth weir has a very good flood release capacity as well as strong economical and structural advantages, and combined analytical and experimental investigations were performed in this paper to evaluate its performance.
Journal ArticleDOI
A new approach for oblique weir discharge coefficient prediction based on hybrid inclusive multiple model
TL;DR: In this paper, the authors investigated the efficacy of several intelligent models including multiple linear regression (MLR), Gaussian process regression (GPR), artificial neural network (ANN) and multiple models driven by ANN (MM-ANN) methods in estimating oblique weir discharge coefficient (Cd).
Journal ArticleDOI
Study of Energy Dissipation and Downstream Flow Regime of Labyrinth Weirs
TL;DR: In this article, the authors investigated the energy dissipation and downstream flow regime of labyrinth weirs and found that the total dissipated energy on labyrinth weir is approximately equal to the maximum possible amount of dissipation.
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Evaluating the application of data-driven intelligent methods to estimate discharge over triangular arced labyrinth weir
TL;DR: This study examines the precision and use of six data-driven models including Bayesian neural network, multiple linear regression (MLR), multi-layer perceptron neural network (MLPNN), gene expression programming (GEP), least square support vector machine (LSSVM), and Chi-squared automatic interaction detector (CHAID) for the estimation of discharge passing triangular arced labyrinth weirs.