Abstract
This paper investigates the effects of an intermittent supply in a large branched set-up. The general behavior of the filling phenomena is exemplified with reference to a typical test. Then, the effects on pressures measured during transients of valves with different diameters at the downstream end of the branches are systematically investigated. The dependence of the largest overpressure on the system characteristics and downstream conditions is explored. The results of the shown tests and their analysis allow some interesting insight into the possible behavior of functioning systems during intermittent supply. For example, results confirm that a critical dimension of the downstream openings can increase the impacts of the water front propagation during the filling, while the topological complexity of the systems can mitigate them. The relevance of the results for the numerical model benchmarking is also discussed.
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Acknowledgements
The active support of Sara Montanucci, Francesco Casinini, and Claudio Del Principe for the laboratory activities is gratefully acknowledged.
Funding
The simple pipe set-up used in previous papers was supported by the World Bank Group contract number 7199396 “An Investigation of Technological Solutions to Mitigate the Impact of Intermittent Water Supply”. The author declares that no funds, grants, or other support were received for the set-up modification and during the preparation of this manuscript.
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Ferrante, M. A Laboratory Investigation on the Effects of Intermittent Water Supply in a Branched System. Water Resour Manage 38, 587–601 (2024). https://doi.org/10.1007/s11269-023-03686-8
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DOI: https://doi.org/10.1007/s11269-023-03686-8