Free overfall in triangular channels–A review

SV Nabavi, E Zeighami, SM Mirhosseini - Flow Measurement and …, 2024 - Elsevier
The purpose of open channel flow measurement structures is to accurately determine the
flow rate by measuring the upstream head relative to a reference level in the control section …

[HTML][HTML] Free outflow from the end of a horizontal circular pipe related to flow from the PWR cold leg to the downcomer

A Satou, T Hibiki, R Ikeda, Y Sibamoto - Progress in Nuclear Energy, 2025 - Elsevier
During a loss-of-coolant accident in a pressurized water reactor (PWR), there is a risk that
pressurized thermal shock (PTS) may occur due to the rapid cooling of the downcomer wall …

Discharge estimation using brink depth over a trapezoidal-shaped weir

NK Alomari, AN Altalib, AMS Al-Janabi - Flow Measurement and …, 2023 - Elsevier
A weir is an accurate hydraulic structure for estimating water discharge in open channels
and rivers. It can be constructed with a standard shape with vertical upstream and …

[HTML][HTML] Investigation of the free overfall for discharge measurement in stone bed triangular channels

BMA Noori, CJ Mohammed - Ain Shams Engineering Journal, 2024 - Elsevier
This study utilizes the freefall as a simple and useful tool for measuring end depth discharge
EDD in triangular channels having stone beds. For this task, forty-five triangular channel …

Estimating critical depth and discharge over sloping rough end depth using machine learning

AY Mohammed, P Sihag - Journal of Hydroinformatics, 2024 - iwaponline.com
This study uses machine learning (ML) to predict the end-depth structure's discharge and
critical depth (yc). Linear regression, M5P, random forest, random tree, reduced error …

[HTML][HTML] Numerical modeling of laminar free overfall in triangular channels

P Drešar, M Hočevar, M Blagojevič, B Bizjan - Ain Shams Engineering …, 2024 - Elsevier
Abstract Design of open channel transport and flow measurement systems for highly viscous
liquids requires accurate modelling of laminar free overfall. In this study, a computational …

[PDF][PDF] Discharge formula based on brink depth over sharp-crested weirs

NK Alomari, MS Khaleel, AY Mohammed, IA Juma - Water Supply, 2024 - iwaponline.com
Weirs are among the most essential hydraulic structures for measuring water discharge in
open channels. The prediction of water discharge over weirs should be as precise and …

Flow Rate Capacity Improvement of Triangular Plan Form Sharp Crested Weirs

BMA Noori, NT Aaref - Arabian Journal for Science and Engineering, 2024 - Springer
Hydraulic engineers are always seeking solutions to increase the flow rate capacity of weirs
in order to overpass and regulate large flow rates with low upstream afflux, preventing the …

Numerical Investigation of Hydraulic Characteristics Effective on Vertical Drop

R Daneshfaraz, V Hasanniya… - Numerical Methods in Civil …, 2022 - nmce.kntu.ac.ir
The drops are used to control the descents, stabilize the bed level, and control the upstream
water level in sloping channels with less slope than the ground slope. The current study …

[PDF][PDF] Free Overfall for Discharge Measurement in Channels of Different Shapes: A Review

CJ Mohammed, BMA Noori - Academic Journal of Nawroz …, 2024 - scholar.archive.org
The end drop in open channels can be considered as a simple and useful tool for the
measurement of flow rates flowing in open channels of different shapes. The depth at …