Analysis of the Segment Graph of Water Distribution Networks

Abstract

One of the basic infrastructures of every settlement is the water distribution system, which provides clean and potable water for both private houses, industrial consumers and institution establishments. The operational robustness and vulnerabilities of these networks is an essential issue, both for the quality of life and for the preservation of the environment. Even with frequent and careful maintenance, unintentional pipe bursts might occur, and during the reparation time, the damaged section must be isolated hydraulically from the main body of the water distribution network. Due to the size and complexity of these networks, it might not be trivial how to isolate the burst section, especially if one wishes to minimize the impact on the overall system. This paper presents an algorithmic method that is capable of creating isolation plans for real-life networks in a computationally efficient way, based on the graph properties of the network. Besides this segmentation plan, the topological behavior of the structural graph properties was analyzed with the help of the complex network theory to create a method for the quantitative topology based categorization of the water distribution networks.

Isolation Valve Placement Optimization of Water Distribution Networks to Reduce Vulnerability

“…For hydraulic simulation, an in-house solver, called STACI, is utilized that was already used to present several results to the literature [5][6][7]. The hydraulic results were validated, ensuring that the differences in the outputs (e.g., pressure, volume flow rate) are below 1% compared to the well-known EPANET solver.…”

Analysis of the isolation valve system in water distribution networks using the segment graph

“…Recently, various approaches, mainly based on topological analysis and tools proposed by the Complex Network Theory (CNT), have been adopted to evaluate the influence of the IVS in various applications. Huzsvár et al (2019) proposed the WDNs classification using the segment graph; while Zischg et al (2019) proposed a methodology for studying WDNs reliability and valve placement assessment by using network topology and IVS information. Wéber et al (2020) proposed a novel methodology based on a topological metric that allows to individuate the critical segments in WDNs.…”