Hydraulically informed graph theoretic measure of link criticality for the resilience analysis of water supply networks

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Title: Hydraulically informed graph theoretic measure of link criticality for the resilience analysis of water supply networks
Authors: Ulusoy, A
Stoianov, I
Chazerain, A
Item Type: Journal Article
Abstract: Water Distribution Networks (WDN) are complex and highly interconnected systems. To maintain operation under failure conditions, WDNs should have built-in resilience based on topological and energy redundancy. There are various methods for analysing the resilience of WDNs based on either hydraulic models or surrogate network measures; however, not a single universally accepted method exists. Hydraulic modeling of disruptive operational scenarios suffer from combinatorial restrictions and uncertainties. Methods that rely on surrogate network measures do not take into account the complex interactions between topological and energy redundancy. To bridge this gap, the presented work introduces a hydraulically informed surrogate measure of pipe criticality for the resilience analysis of WDNs, called Water Flow Edge Betweenness Centrality (WFEBC). The WFEBC combines the random walk betweenness centrality with hydraulic (energy) loss principles in pipes. The proposed network resilience estimation method is applied to a case study network and an operational network. Furthermore, a network decomposition approach is proposed to complement the network estimation method and facilitate its scalability to large operational networks. The described resilience analysis method is benchmarked against a hydraulic model-based analysis of WDN reserve capacity. WFEBC is also applied to assess the improvement in resilience allowed by the implementation of a dynamically adaptive topology in an operational network. The benefits and limitations of the proposed method are discussed.
Issue Date: 1-Dec-2018
Date of Acceptance: 7-Jul-2018
ISSN: 2364-8228
Publisher: SpringerOpen
Journal / Book Title: Applied Network Science
Volume: 3
Copyright Statement: © The Author(s). 2018. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License ( ), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Sponsor/Funder: Engineering & Physical Science Research Council (E
Funder's Grant Number: EP/P004229/1
Publication Status: Published
Article Number: ARTN 31
Online Publication Date: 2018-08-13
Appears in Collections:Faculty of Engineering
Civil and Environmental Engineering

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