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dc.contributorValero Ferrando, Ma. del Carmen
dc.contributorKatrašnik, Tomaž
dc.contributor.authorLozano Hontecillas, Carlos
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Mecànica de Fluids
dc.date.accessioned2014-12-04T19:15:08Z
dc.date.available2014-12-04T19:15:08Z
dc.date.issued2014-09
dc.identifier.urihttp://hdl.handle.net/2099.1/24141
dc.description.abstractRecent changes in the exhaust emission legislations obliged the automotive industry to reduce the emissions and improve the fuel saving. Stratified charge direct-injection engines were indicated as a convenient short-term solution to adapt spark-ignited engines to these requirements. In this context, the objective of this thesis was to evaluate the effectiveness of the intake system for a stratified charge spark-ignited direct-injection engines by means of a computational fluid dynamic tool. The effectiveness of the intake system in such engines is assessed by the tumble number. Therefore, the first objective of the project was to compare differences between transient and steady-state simulations in calculating the tumble number. Steady-state simulations are mostly used by companies since they require less computational power than transient simulations. However, the differences of the model between both types of simulations speak in favor of a clear advantage for transient simulation to calculate an approximation of the tumble number. The second objective of the project was to perform an enhancement of the mesh corresponding to steady-state model. This was performed by refining the mesh through different programs and studying the impact of each refinement criteria on the quality of the results.
dc.language.isoeng
dc.publisherUniversitat Politècnica de Catalunya
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Enginyeria mecànica::Motors::Motors de combustió interna
dc.subjectÀrees temàtiques de la UPC::Física::Física de fluids::Flux de fluids
dc.subject.lcshInternal combustion engines -- Ignition
dc.subject.lcshFlow injection analysis
dc.subject.lcshComputational fluid dynamics
dc.titleEvaluation of numerical methods for modeling flow field during intake stroke of spark-ignited engines
dc.typeMaster thesis (pre-Bologna period)
dc.subject.lemacMotors de combustió interna -- Encesa
dc.subject.lemacAnàlisi per injecció en flux
dc.subject.lemacDinàmica de fluids -- Simulació per ordinador
dc.rights.accessOpen Access
dc.audience.educationlevelEstudis de primer/segon cicle
dc.audience.mediatorEscola Tècnica Superior d'Enginyeria Industrial de Barcelona
dc.audience.degreeENGINYERIA INDUSTRIAL (Pla 1994)


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