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Computational investigation of diesel nozzle internal flow during the complete injection event

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Computational investigation of diesel nozzle internal flow during the complete injection event

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dc.contributor.author Salvador, Francisco Javier es_ES
dc.contributor.author De La Morena, Joaquín es_ES
dc.contributor.author Bracho Leon, Gabriela es_ES
dc.contributor.author Jaramillo-Císcar, David es_ES
dc.date.accessioned 2019-09-14T20:01:00Z
dc.date.available 2019-09-14T20:01:00Z
dc.date.issued 2018 es_ES
dc.identifier.issn 1678-5878 es_ES
dc.identifier.uri http://hdl.handle.net/10251/125675
dc.description.abstract [EN] Currently, diesel engines are calibrated using more and more complex multiple injection strategies. Under these conditions, the characteristics of the flow exiting the fuel injector are strongly affected by the transient interaction between the needle, the sac volume and the orifices, which are not yet clear. In the current paper, a methodology combining a 1D injector model and 3D-CFD simulations is proposed. First, the characteristics of the nozzle flow have been experimentally assessed in transient conditions by means of injection rate and momentum flux measurements. Later, the 3D-CFD modeling approach has been validated at steady-state fixed lift conditions. Finally, a previously developed 1D injector model has been used to extract the needle lift profiles and transient pressure boundary conditions used for the full-transient 3D-CFD simulations, using adaptive mesh refinement (AMR) strategies to be able to simulate the complete injection rate starting from 1 mu m lift. es_ES
dc.description.sponsorship This work was partly sponsored by "Ministerio de Economia y Competitividad'', of the Spanish Government, in the frame of the Project "Estudio de la interaccion chorro-pared en condiciones realistas de motor'', Reference TRA2015-67679-c2-1-R. The authors would like also to thank the computer resources, technical expertise and assistance provided by Universidad de Valencia in the use of the supercomputer "Tirant''. Mr. Jaramillo's Thesis is funded by "Conselleria d'Educacio, Cultura i Esports'' of Generalitat Valenciana in the frame of the program "Programa VALI + D para investigadores en formacion, Reference ACIF/2015/040. es_ES
dc.language Inglés es_ES
dc.publisher Springer-Verlag es_ES
dc.relation MINISTERIO DE ECONOMIA INDUSTRIA Y COMPETITIVIDAD /TRA2015-67679-C2-1-R es_ES
dc.relation GENERALITAT VALENCIANA/ACIF/2015/040 es_ES
dc.relation.ispartof Journal of the Brazilian Society of Mechanical Sciences and Engineering es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Nozzle es_ES
dc.subject Modelling es_ES
dc.subject Diesel es_ES
dc.subject Dynamic es_ES
dc.subject Moving-mesh es_ES
dc.subject.classification MAQUINAS Y MOTORES TERMICOS es_ES
dc.title Computational investigation of diesel nozzle internal flow during the complete injection event es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1007/s40430-018-1074-z es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Máquinas y Motores Térmicos - Departament de Màquines i Motors Tèrmics es_ES
dc.description.bibliographicCitation Salvador, FJ.; De La Morena, J.; Bracho Leon, G.; Jaramillo-Císcar, D. (2018). Computational investigation of diesel nozzle internal flow during the complete injection event. Journal of the Brazilian Society of Mechanical Sciences and Engineering. 40(3):153-167. https://doi.org/10.1007/s40430-018-1074-z es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1007/s40430-018-1074-z es_ES
dc.description.upvformatpinicio 153 es_ES
dc.description.upvformatpfin 167 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 40 es_ES
dc.description.issue 3 es_ES
dc.relation.pasarela 354054 es_ES
dc.contributor.funder GENERALITAT VALENCIANA es_ES
dc.contributor.funder MINISTERIO DE ECONOMIA INDUSTRIA Y COMPETITIVIDAD es_ES
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