The extension of EPANET source code to simulate unsteady flow in water distribution networks with variable head tanks

Avesani, Diego; Righetti, Maurizio; Righetti, Davide; Bertola, P.

doi:10.2166/hydro.2012.013

Cited by 20 publications

(13 citation statements)

References 9 publications

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“…The main difficulty in solving such system is that the flow direction in all pipes is not known a priori which would complicate the application of the energy equation for each individual pipe. Several solution procedures are available in the literature for such types of piping systems [6, 7]. The traditional solution procedure advocated by fluid mechanics and hydraulics textbooks depends mainly on a trial‐and‐error approach.…”

Section: Introductionmentioning

confidence: 99%

An improved computational algorithm for teaching hydraulics of branching pipes in engineering curricula

Wahba

2015

Comp Applic In Engineering

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Flow in branching pipes is a well-known hydraulics problem that is traditionally assigned to mechanical, civil and chemical engineering students in their fluid mechanics introductory course. The conventional solution procedure advocated by fluid mechanics and hydraulics textbooks is based on a tedious trial-and-error approach. Although manageable for a simple system of three pipes, the procedure becomes impractical for larger number of pipes. A recent numerical algorithm attempted to eliminate the trial-and-error approach; however, the procedure still requires an explicit step for identifying the discharging tanks from the filling ones. In the present study, an efficient numerical algorithm based on a Newton linearization procedure is developed which would eliminate the above mentioned drawbacks. The efficiency of the new procedure is demonstrated by solving a simple three-pipe problem and a more complicated nine-pipe problem. The results of the present algorithm are validated against available results in the literature and against the piping software package, EPANET. The proposed procedure could be implemented in a straightforward manner through the MATLAB environment. ß 2015 Wiley Periodicals, Inc. Comput Appl Eng Educ 23:537-541, 2015; View this article online at wileyonlinelibrary.com/journal/ cae;

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Section: Introductionmentioning

confidence: 99%

An improved computational algorithm for teaching hydraulics of branching pipes in engineering curricula

Wahba

2015

Comp Applic In Engineering

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“…EPANET 3 is open-source software written by Open Source EPANET Initiative in Object-Oriented Programming based on Cþþ language (https://github.com/OpenWaterAnalytics/epanet-dev 2016). Hydraulic solver of the current EPANET 3 software can compute WDN hydraulics by using pressure-dependent demands (Todini 2003;Tanyimboh & Templeman 2010;Seyoum & Tanyimboh 2016), leakage flows , and Generalized GGA (Todini 2011;Avesani et al 2012;Giustolisi et al 2012). Generalized GGA solves quasi-steady network hydraulics and cannot represent transients in pipelines.…”

Section: Source Code Modificationsmentioning

confidence: 99%

Smart pressure management extension for EPANET: source code enhancement with a dynamic pressure reducing valve model

Koşucu

Demirel

2022

Journal of Hydroinformatics

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Applying pressure management reduces lost water and excessive hydraulic pressures in water distribution networks (WDNs). There are currently four different types of pressure management in the literature, i.e. fixed outlet, time modulated, flow modulated, and remote node modulated. The primary device used in pressure management is the pressure reducing valve (PRV) that dynamically controls the outlet pressure by moving up and down its main valve element. In this study, we firstly introduce the dynamic PRV model with four different pressure management types to the source code of EPANET v3.1 software and assess the effect of different valve opening schemes on pressure graphs and leakage quantities. The results showed that dynamic PRV significantly reduces lost water amounts and excessive hydraulic pressures in the WDN when valve opening is continuously adjusted. Our smart PM extension implemented into EPANET v3.1 software is publicly available in Zenodo repositories (https://zenodo.org/record/6243078).

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“…The power required depends on the pipes number, pipes specifications, and pipe arrangement (series/parallel) to create the pipe network. Despite that many solution procedures are available in the literature for such types of piping systems [6,7]. MATLAB as modern mathematical tools can be integrated into the solution to handle the problematic steps.…”

Section: Friction Factormentioning

confidence: 99%

MATLAB Application for the Selection of the Best Pipe Series/Parallel Arrangement in Piping Network

Bani-Hani¹

2017

IJCA

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The aim of this work is to show the application of computer software to solve complicated real life engineering problems. The software used is MATLAB where a code is written after the theoretical derivation of the governing equations. The application of MATLAB is on mechanical engineering fluid mechanics unit. The application is for the selection of the best arrangement of pipes series/parallel of different diameters, roughness, and lengths to achieve the best operating conditions for a pump in a specified pipe network. This includes selecting the minimum pump power and pressure drop. A MATLAB code is used to solve for different scenarios of arrangement which will save time and efforts.Results from MATLAB shows a simple solution of simultaneously nonlinear equations describing the system compared to other traditional methods of solution like trial and error manual solutions. MATLAB makes the selection of a scenario among seven possible scenarios easy and accurate.

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The extension of EPANET source code to simulate unsteady flow in water distribution networks with variable head tanks

Cited by 20 publications

References 9 publications

An improved computational algorithm for teaching hydraulics of branching pipes in engineering curricula

An improved computational algorithm for teaching hydraulics of branching pipes in engineering curricula

Smart pressure management extension for EPANET: source code enhancement with a dynamic pressure reducing valve model

MATLAB Application for the Selection of the Best Pipe Series/Parallel Arrangement in Piping Network

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