Pressure-dependent EPANET extension: extended period simulation

Calvin Siew, Tiku Tanyimboh

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

4 Citations (Scopus)


The performance of water distribution networks (WDNs) is occasionally affected by planned (system maintenance) and unplanned (fire events and main bursts) interruptions. There is always a need for water companies to study the impact of these potentially pressure deficient situations on the WDN's level of service in a realistic and practical manner. In reality, such events occur over a period of time and are usually modeled using extended period simulation (EPS). This paper presents an EPS model capable of assessing the network performance effectively and accurately under these conditions. The proposed extended period simulation model is based on pressure driven analysis (PDA) and is capable of obtaining the accurate nodal pressures and actual flows delivered at demand nodes. Simulations on the “Anytown” network were carried out to demonstrate the capability of the model. Results obtained highlighted the superiority of PDA over DDA in simulating pressure deficient networks.
Original languageEnglish
Title of host publicationConference Proceedings for the 12th Annual Conference on Water Distribution Systems Analysis
Publication statusPublished - 12 Sep 2010
Event12th Annual Water Distribution Systems Analysis conference (WDSA 2010) - Tucson, United States
Duration: 12 Sep 201015 Sep 2010


Conference12th Annual Water Distribution Systems Analysis conference (WDSA 2010)
Country/TerritoryUnited States


  • simulation
  • pressure-dependent analysis
  • water distribution modeling
  • extended period simulation
  • dynamic simulation
  • demand driven analysis
  • head-flow relationship
  • pressure-deficient water distribution network
  • head driven analysis

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