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dc.contributor.authorNewbold, James Richarden
dc.date.accessioned2014-03-14T20:31:37Zen
dc.date.available2014-03-14T20:31:37Zen
dc.date.issued2009-01-27en
dc.identifier.otheretd-02082009-075711en
dc.identifier.urihttp://hdl.handle.net/10919/31177en
dc.description.abstractThe main purpose of this study was to compare the Distributed Engineering Workstation (DEW) and EPANET models. These two models are fundamentally different in the approaches taken to simulate hydraulic systems. To better understand the calculations behind each modelsâ hydraulic simulation, three solution methods were evaluated and compared. The three solution approaches were the Todini, Hardy-Cross, and DEW bisection methods. The Todini method was included in the study because of its similarities to EPANETâ s hydraulic solution method and the Hardy-Cross solution was included due to its similarities with the DEW approach. Each solution method was used to solve a simple looped network, and the hydraulic solutions were compared. It was determined that all three solution methods predicted flow values that were very similar. A different, more complex looped network from the solution method comparison was simulated using both EPANET and DEW. Since EPANET is a well established water distribution system model, it was considered the standard for the comparison with DEW. The predicted values from the simulation in EPANET and DEW were compared. This comparison offered insight into the functionality of DEWâ s hydraulic simulation component. The comparison determined that the DEW model is sensitive to the tolerance value chosen for a simulation. The flow predictions between the DEW and EPANET models became much closer when the tolerance value in DEW was decreased.en
dc.publisherVirginia Techen
dc.relation.haspartNewbold_Thesis_ETD_v2.pdfen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectmodelingen
dc.subjectEPANETen
dc.subjectgraph traceen
dc.titleComparison and Simulation of a Water Distribution Network in EPANET and a New Generic Graph Trace Analysis Based Modelen
dc.typeThesisen
dc.contributor.departmentEnvironmental Engineeringen
dc.description.degreeMaster of Scienceen
thesis.degree.nameMaster of Scienceen
thesis.degree.levelmastersen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.disciplineEnvironmental Planningen
dc.contributor.committeechairGallagher, Daniel L.en
dc.contributor.committeememberDietrich, Andrea M.en
dc.contributor.committeememberWiddowson, Mark A.en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-02082009-075711/en
dc.date.sdate2009-02-08en
dc.date.rdate2009-02-17en
dc.date.adate2009-02-17en


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