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dc.contributor.authorNewbold, James Richarden_US
dc.date.accessioned2014-03-14T20:31:37Z
dc.date.available2014-03-14T20:31:37Z
dc.date.issued2009-01-27en_US
dc.identifier.otheretd-02082009-075711en_US
dc.identifier.urihttp://hdl.handle.net/10919/31177
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_US
dc.publisherVirginia Techen_US
dc.relation.haspartNewbold_Thesis_ETD_v2.pdfen_US
dc.rightsI hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to Virginia Tech or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report.en_US
dc.subjectmodelingen_US
dc.subjectEPANETen_US
dc.subjectgraph traceen_US
dc.titleComparison and Simulation of a Water Distribution Network in EPANET and a New Generic Graph Trace Analysis Based Modelen_US
dc.typeThesisen_US
dc.contributor.departmentEnvironmental Engineeringen_US
dc.description.degreeMaster of Scienceen_US
thesis.degree.nameMaster of Scienceen_US
thesis.degree.levelmastersen_US
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen_US
thesis.degree.disciplineEnvironmental Planningen_US
dc.contributor.committeechairGallagher, Daniel L.en_US
dc.contributor.committeememberDietrich, Andrea M.en_US
dc.contributor.committeememberWiddowson, Mark A.en_US
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-02082009-075711/en_US
dc.date.sdate2009-02-08en_US
dc.date.rdate2009-02-17
dc.date.adate2009-02-17en_US


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