Extending EPANET hydraulic solver capacity with rigid water column global gradient algorithm

Mehmet Melih Koşucu*, Enes Albay, Mehmet Cüneyd Demirel

*Bu çalışma için yazışmadan sorumlu yazar

Araştırma sonucu: Dergiye katkıMakalebilirkişi

7 Atıf (Scopus)

Özet

EPANET is one of the most commonly used open-source programs in hydraulic modelling water distribution networks (WDNs), based on steady-state and extended period simulation approaches. These approaches effectively estimate flow capacity and average pressures in networks; however, EPANET is not yet fully effective in modelling incompressible unsteady flows in WDNs. In this study, the hydraulic solver capacity of EPANET 3 is extended with the Rigid Water Column Global Gradient Algorithm (RWC-GGA) to model incompressible unsteady flow hydraulics in WDNs. Moreover, we incorporated dynamically more accurate valve expressions than the existing ones in the default EPANET code and introduced a new global convergence algorithm, Convergence Tracking Control Method (CTCM), in the solver code. The RWC-GGA, CTCM, and valve expressions are tested and validated in three different WDNs varying from simple to sophisticated set-ups. The results show that incompressible unsteady flows can be modelled with RWC-CGA and dynamic valve representations. Finally, the convergence problem due to the valve motion and the pressure-dependent algorithm (PDA) is solved by the implemented global convergence algorithm, i.e. CTCM.

Orijinal dilİngilizce
Sayfa (başlangıç-bitiş)31-43
Sayfa sayısı13
DergiJournal of Hydro-Environment Research
Hacim42
DOI'lar
Yayın durumuYayınlandı - May 2022

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Publisher Copyright:
© 2022 International Association for Hydro-environment Engineering and Research, Asia Pacific Division

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