Numerical Simulation of Ignition and Transient Combustion in Fuel Vapor Clouds

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dc.contributor.advisorTrouvé, Arnauden_US
dc.contributor.authorWiley, Jenniferen_US
dc.contributor.departmentFire Protection Engineeringen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.date.accessioned2007-09-28T15:00:08Z
dc.date.available2007-09-28T15:00:08Z
dc.date.issued2007-07-31en_US
dc.description.abstractThe Large-Eddy Simulation (LES) approach is used to model partially-premixed combustion (PPC) in confined and unconfined fuel vapor clouds. The model is based on the concept of a filtered reaction progress variable to describe the premixed combustion. The premixed combustion model is implemented into the Fire Dynamics Simulator (FDS), developed at the National Institute of Standards and Technology, USA, and is coupled with either an equilibrium-chemistry, mixture-fraction based model (FDS Version 4) or an eddy dissipation model (FDS Version 5) for non-premixed combustion. Modifications to the model are developed and implemented with the goal of reducing the grid resolution requirement while still producing physically sound results. The modified formulation is tested using both versions of the non-premixed combustion model, and the results are compared. It is found that the modifications are capable of reducing errors associated with poorly-resolved simulations in both versions of the model.en_US
dc.format.extent2098586 bytes
dc.format.mimetypeapplication/pdf
dc.identifier.urihttp://hdl.handle.net/1903/7288
dc.language.isoen_US
dc.subject.pqcontrolledEngineering, Mechanicalen_US
dc.subject.pqcontrolledEngineering, Industrialen_US
dc.subject.pquncontrolledFDSen_US
dc.subject.pquncontrolledpartially premixed combustionen_US
dc.subject.pquncontrolleddeflagrationen_US
dc.subject.pquncontrolledmodelingen_US
dc.titleNumerical Simulation of Ignition and Transient Combustion in Fuel Vapor Cloudsen_US
dc.typeThesisen_US

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