期刊
URBAN WATER JOURNAL
卷 18, 期 10, 页码 885-895出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/1573062X.2021.1948076
关键词
Complexity; criticality; fractality; optimization; water distribution networks
The study found that water distribution networks are fractal and the fractal property has been successfully applied to critical pipe identification and optimal rehabilitation of WDNs. Compared with conventional methods, the fractal-based approach can achieve better solutions more efficiently.
Fractals have been identified as a common feature in many natural and artificial networks that exhibit self-similarity of the topological patterns, i.e. different parts of the system have similar structures to each other as well as to the whole system. This study investigates the fractality in water distribution networks (WDNs) and the application of the fractal property in WDNs analysis. Specifically, we explore the existence of fractal topological patterns in eight real-world WDNs of different complexities by using the box-covering algorithm. The results demonstrate all of the studied WDNs are fractal. Moreover, the application of the fractal property is demonstrated via critical pipe identification and optimal rehabilitation of benchmark real-world WDNs. All results show that the fractal-based approach can achieve better or equally good solutions compared with conventional methods in a much more efficient way, e.g. via automation of some processes or significant reduction in the search space/components to consider.
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