Skeletonizing Pipes in Series within Urban Water Distribution Systems Using a Transient-Based Method
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Volume 145, Issue 2
Abstract
Many skeletonization methods are available to simplify the configuration of urban water distribution systems (WDS) to enable hydraulic modeling and analysis. However, these approaches are generally based on steady-state hydraulic analysis, and hence the skeletonized systems cannot represent the underlying transient properties of the original systems, resulting in potential risk when handling transient events (e.g., pipe bursts). To this end, this paper proposes a transient-based method to ensure the skeletonized systems can capture the overall transient properties of the original WDS. Two criteria are proposed as principles to skeletonize pipes in series, and three assessment metrics are adopted to evaluate the transient performance of the skeletonized systems. Two WDS are used to demonstrate the effectiveness of the proposed method. Results show that the skeletonized systems produced by the proposed approach match well with the original WDS in transient dynamics. Although not all transient details can be captured, the proposed approach significantly outperforms the traditional steady-state–based method. The proposed approach offers an important tool to enable effective skeletonization of WDS for transient modeling and analysis.
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Acknowledgments
Corresponding author Professor Zheng was funded by The National Science and Technology Major Project for Water Pollution Control and Treatment (2017ZX07201004) and The National Natural Science Foundation of China (Grant No. 51708491). Dr. Duan was supported by the Hong Kong Research Grants Council (RGC) under Project No. 15201017. Professor Guo was supported by the IWHR Research & Development Support Program (Grant No. HY0145B802017).
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Published In
Journal of Hydraulic Engineering
Volume 145 • Issue 2 • February 2019
Copyright
©2018 American Society of Civil Engineers.
History
Received: Mar 27, 2018
Accepted: Jul 27, 2018
Published online: Nov 19, 2018
Published in print: Feb 1, 2019
Discussion open until: Apr 19, 2019
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