Revisiting the estimation of Colebrook friction factor: a comparison between artificial intelligence models and CW based explicit equations

M Niazkar - KSCE Journal of Civil Engineering, 2019 - Springer
Abstract Application of Colebrook-White (CW) relation for calculating Darcy-Weisbach (DW)
friction factor has been widely accepted in literature. However, its implicit formation made it …

An Excel VBA‐based educational module for bed roughness predictors

M Niazkar - Computer Applications in Engineering Education, 2021 - Wiley Online Library
Estimation of flow resistance coefficients plays an inevitable role in open‐channel flows in
hydraulic modeling and water resources engineering. Despite many equations and methods …

Bridge backwater estimation: A comparison between artificial intelligence models and explicit equations

M Niazkar, N Talebbeydokhti, SH Afzali - Scientia Iranica, 2021 - scientiairanica.sharif.edu
Estimation of bridge backwater has been one of practical challenges in hydraulic
engineering for decades. In this study, Genetic Programming (GP) has been applied for …

Comparison of explicit relations for calculating Colebrook friction factor in pipe network analysis using h-based methods

M Niazkar, N Talebbeydokhti - Iranian Journal of Science and Technology …, 2020 - Springer
Although many explicit correlations have already been presented as alternatives to implicit
Colebrook–White (C–W) formula, performances of C–W-based relations in pipe network …

[PDF][PDF] Comparative analysis and validation of selected explicit equation models for determination of Darcy friction factor to estimate major head loss for a pressurized …

A Arumugam, H Kibrom, M Gebreamlak… - … & Technology Asia, 2022 - researchgate.net
Fluid flow through pipelines has a huge number of applications. The pipelines design aims
to deliver the fluid in a cost-effective manner with the necessary flow rate and required head …

[PDF][PDF] Applying the WaterGEMS Software to Conduct a Comparison of the Darcy-Weisbach and Hazen-Williams Equations for Calculating the Frictional Head Loss in …

A Abdulsamad, KA Abdulrazzaq - Journal of Engineering, 2023 - iasj.net
Darcy-Weisbach (DW) is a typical resistance equation in pressured flow; however, some
academics and engineers prefer Hazen-Williams (HW) for assessing water distribution …

Discussion of “Accurate and Efficient Explicit Approximations of the Colebrook Flow Friction Equation Based on the Wright ω-Function” by Dejan Brkić and Pavel Praks …

M Niazkar - Mathematics, 2020 - mdpi.com
Estimating the Darcy–Weisbach friction factor is crucial to various engineering applications.
Although the literature has accepted the Colebrook–White formula as a standard approach …

[HTML][HTML] Технико-экономическое обоснование выбора параметров труб и системы транспортировки сточных вод для орошения на примере …

АЛС Абдуламир, НТ Джумагулова - Вестник Инженерной школы …, 2021 - cyberleninka.ru
Для решения проблемы дефицита воды на орошение сельскохозяйственных земель в
административном округе Кербель в Ираке было принято решение использовать …

[HTML][HTML] Технико-экономическое обоснование стоимости транспортировки сточных вод для ирригационных целей в административном округе Кербела (Ирак)

ААЛ Саид, НТ Джумагулова - Строительство: наука и …, 2021 - cyberleninka.ru
Введение. Представлена оценка экономической целесообразности используемых
материалов труб для транспортировки очищенных сточных вод. Выбор производился …

Influence of Pipe Diameter and Material on Water Hammer in Piped Systems

AKA Ahmed, RW Shehata… - Journal of Advanced …, 2024 - journals.ekb.eg
A sudden change in the pipeline's velocity results in a transient flow known as a" water
hammer" in pipes. This phenomenon can cause negative and positive pressure in the …