Numerical study of the effect of length change on the flow pattern around a side weir in a converging channel

Ghorbannia, Davood; Eghbalzadeh, Afshin

doi:10.1007/s00707-018-2215-2

Cited by 4 publications

(2 citation statements)

References 15 publications

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“…The advances in computational fluid dynamics have made numerical simulation a suitable method for studying the free surface flow of devices used for water measurement in free surface channels 17 . Bilhan et al 18 and Emiroglu et al 19,20 investigated the hydraulic characteristics of rectangular, triangular and different trapezoidal shape labyrinth side weirs in subcritical flows.…”

Section: Introductionmentioning

confidence: 99%

A New Coefficient of Discharge Relation for Flow Over Broad-Crested Rectangular Side Weir in a Trapezoidal-Type Channel

Sarchami¹,

Tousi²,

Afshar³

et al. 2022

J. of Applied Sciences

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Background and Objective: One of the new methods to receive and distribute flow in floodwater spreading systems is utilizing side weirs.These weirs are employed extensively in environmental, irrigation and hydraulics engineering to control the flow direction. This work evaluates the hydraulic behaviour of the rectangular broad-crested side weir in a trapezoidal shape channel numerically and experimentally to calculate the coefficient of discharge. Materials and Methods: In this investigation, gene expression programming is employed to predict the discharge coefficient under various conditions. Results: The study results revealed that six key factors affect the side weir discharge coefficient, which is the froude number (F r ), main channelʼs bed slope, side weir stepʼs height to side weirʼs length the side weirʼs angle (2), side weir stepʼs height to upstream flow depth of side weir and upstream flow depth of side weir to

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Section: Introductionmentioning

confidence: 99%

A New Coefficient of Discharge Relation for Flow Over Broad-Crested Rectangular Side Weir in a Trapezoidal-Type Channel

Sarchami¹,

Tousi²,

Afshar³

et al. 2022

J. of Applied Sciences

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“…Ghorbannia and Eghbalzadeh (2018) simulated the flow pattern within a converging canal along a side weir using a computational fluid dynamics model. They estimated the flow free surface and turbulent flow by means of the VOF scheme and the renormalization group (RNG) turbulent model, respectively.…”

Section: Introductionmentioning

confidence: 99%

A Proposed Novel Hybrid Intelligent Model Based on ANFIS Integrated with Firefly Algorithm for Forecasting Discharge Coefficient of Side Weirs on Converging Canals^*

Heydari

Shabanlou

2020

Irrigation and Drainage

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Side weirs are widely used to measure and control flows passing through main canals. In this study, a hybrid model is developed to approximate the discharge coefficient of side weirs located on converging canals for the first time, meaning that the adaptive neuro-fuzzy inference system (ANFIS) network is optimized by means of the firefly algorithm. After that, six ANFIS and adaptive neuro-fuzzy inference system-firefly algorithm (ANFIS-FA) models are introduced using input parameters. In addition, in this study, Monte Carlo simulation is employed to study the modelling accuracy. Furthermore, the k-fold cross-validation approach is implemented to validate the modelling results. Analysing the modelled results demonstrates that the hybrid models are more accurate than the ANFIS ones. The superior model simulates the discharge coefficient values with reasonable accuracy. For example, the values of the determination coefficient (R 2), the mean absolute error (MAE) and the root mean square error (RMSE) for the superior model are calculated as 0.993, 0.011 and 0.015, respectively. Also, about 98% of the superior model results have errors less than 12%. According to the uncertainty analysis results, the superior model has an overestimated performance. A sensitivity analysis indicates that the flow Froude number at the side weir downstream is the most effective input parameter.

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Numerical Simulation of the Effect of Single Guide Vane Installation on the Hydraulic Performance of Side Weirs in Converging Channels

Shahriari,

Daryaee,

Kashefipour

et al. 2024

Iran J Sci Technol Trans Civ Eng

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Numerical study of the effect of length change on the flow pattern around a side weir in a converging channel

Cited by 4 publications

References 15 publications

A New Coefficient of Discharge Relation for Flow Over Broad-Crested Rectangular Side Weir in a Trapezoidal-Type Channel

A New Coefficient of Discharge Relation for Flow Over Broad-Crested Rectangular Side Weir in a Trapezoidal-Type Channel

A Proposed Novel Hybrid Intelligent Model Based on ANFIS Integrated with Firefly Algorithm for Forecasting Discharge Coefficient of Side Weirs on Converging Canals^*

Numerical Simulation of the Effect of Single Guide Vane Installation on the Hydraulic Performance of Side Weirs in Converging Channels

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Numerical study of the effect of length change on the flow pattern around a side weir in a converging channel

Cited by 4 publications

References 15 publications

A New Coefficient of Discharge Relation for Flow Over Broad-Crested Rectangular Side Weir in a Trapezoidal-Type Channel

A New Coefficient of Discharge Relation for Flow Over Broad-Crested Rectangular Side Weir in a Trapezoidal-Type Channel

A Proposed Novel Hybrid Intelligent Model Based on ANFIS Integrated with Firefly Algorithm for Forecasting Discharge Coefficient of Side Weirs on Converging Canals*

Numerical Simulation of the Effect of Single Guide Vane Installation on the Hydraulic Performance of Side Weirs in Converging Channels

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A Proposed Novel Hybrid Intelligent Model Based on ANFIS Integrated with Firefly Algorithm for Forecasting Discharge Coefficient of Side Weirs on Converging Canals^*