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Improved Loop-Flow Method for Hydraulic Analysis of Water Distribution Systems

Samo za registrovane korisnike
2018
Autori
Vasilić, Željko
Stanić, Miloš
Kapelan, Zoran
Ivetić, Damjan
Prodanović, Dušan
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentu
Apstrakt
Different methods have been developed in the past to formulate and solve steady-state hydraulics of a water distribution system (WDS). The most widely used method nowadays is probably the global gradient algorithm (GGA). The loop-flow method (also known as the Q method) represents a viable alternative to GGA, especially when combined with suitably preprocessed network data. The main advantage of the Q method over the GGA is in the smaller number of unknowns to solve for, which is coming from the fact that real WDSs typically have far less loops than nodes. A new loop-flow-type method, relying on the novel triangulation based loops identification algorithm (TRIBAL) that was implemented in the corresponding new hydraulic solver (Q), is presented in this paper (TRIBAL-Q). The new method aims to exploit this advantage, while overcoming key drawbacks of existing Q methods. The performance of the TRIBAL-Q-based solver is compared with the GGA-based solver on four large real networks of diffe...rent complexity and topology. The results obtained demonstrate that, despite requiring an increased number of iterations to converge, the TRIBAL-Q method-based solver is substantially computationally faster, has slightly better numerical stability, and is equally accurate in making predictions when compared with the GGA-based hydraulic solver.

Ključne reči:
Q method / Loop flow / WDS analysis / Minimal loops / Global gradient algorithm (GGA)
Izvor:
Journal of Water Resources Planning and Management, 2018, 144, 4
Izdavač:
  • American Society of Civil Engineers (ASCE)

DOI: 10.1061/(ASCE)WR.1943-5452.0000922

ISSN: 0733-9496

WoS: 000425621200018

Scopus: 2-s2.0-85042070938
[ Google Scholar ]
URI
https://grafar.grf.bg.ac.rs/handle/123456789/953
Kolekcije
  • Катедра за геодезију и геоинформатику
  • Катедра за хидротехнику и водно-еколошко инжењерство
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GraFar

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