Pressure-Discharge Relations with Application to Head-Driven Simulation of Water Distribution Networks

AbstractThe pressure-discharge relation used in continuity equations is one of the most important components of hydraulic models based on head-driven simulation method, as it has a great impact on the accuracy of the results of these models. Several pressure-discharge relations have been proposed an...

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Bibliographic Details
Published in:Journal of water resources planning and management 2013-11, Vol.139 (6), p.660-670
Main Authors: Shirzad, Akbar, Tabesh, Massoud, Farmani, Raziyeh, Mohammadi, Mirali
Format: Article
Language:English
Subjects:
Accuracy
Computer simulation
Freshwater
Laboratories
Networks
Resource management
Technical Papers
Water distribution
Water engineering
Water resources
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Summary:AbstractThe pressure-discharge relation used in continuity equations is one of the most important components of hydraulic models based on head-driven simulation method, as it has a great impact on the accuracy of the results of these models. Several pressure-discharge relations have been proposed and used in head-driven simulation method, but there are no laboratory and field studies available regarding the accuracy and correctness of these relations. In this research a laboratory set up and a field investigation in some parts of a real water distribution network are used to collect the required data. Flow discharge data from different faucets, based on laboratory and field measurements, are used to compare the proposed pressure-discharge relationships. Furthermore, in this paper, a new pressure-discharge relation is proposed for volumetric and human-based demands that is more reasonable than some previous relations and can be used in pressure-dependent models.
ISSN:0733-9496
1943-5452
DOI:10.1061/(ASCE)WR.1943-5452.0000305