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A computational analysis of local flow for reacting Diesel sprays by means of an Eulerian CFD model

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A computational analysis of local flow for reacting Diesel sprays by means of an Eulerian CFD model

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dc.contributor.author Pandal-Blanco, Adrián es_ES
dc.contributor.author García-Oliver, José M es_ES
dc.contributor.author Novella Rosa, Ricardo es_ES
dc.contributor.author Pastor Enguídanos, José Manuel es_ES
dc.date.accessioned 2019-07-14T20:02:10Z
dc.date.available 2019-07-14T20:02:10Z
dc.date.issued 2018 es_ES
dc.identifier.issn 0301-9322 es_ES
dc.identifier.uri http://hdl.handle.net/10251/123542
dc.description.abstract [EN] An implementation and validation of the coupled Sigma-gamma ADF model is presented in this work for reacting Diesel spray CFD simulations under a RANS turbulence modeling approach. An Approximated Diffusion Flamelet (ADF) model Michel et al. (2008) implemented in the OpenFOAM CFD open-source library by Winklinger (2014)15 fed with the spray description, i.e. mixing formation process, provided by the Sigma-gamma Eulerian atomization model Garcia-Oliver et al. (2013). In the present investigation, the Engine Combustion Network Spray A reference configuration is used for validation. Specifically, the model can provide accurate predictions of typical reacting spray metrics, such as the ignition delay and the lift-off length. Moreover, the internal structure is also fairly reproduced in terms of quasi-steady spatial distribution of formaldehyde and OH, related with low and high temperature reactions respectively. Additionally, modeling results have been compared to recent Particle image velocimetry (PIV) measurements Garcia-Oliver et al. (2017) under both inert and reacting conditions. Flow response to heat release is quantitatively predicted by the model, both in terms of local velocity increase as well as radial dilation. The model has been used to understand combustion-induced reduction in entrainment, in particular around the lift-off length location. Flow confinement does not seem to influence the global flame behaviour, even though some changes in the local flow hint can be observed when moving from an open to a closed domain. (C) 2017 Elsevier Ltd. All rights reserved. es_ES
dc.description.sponsorship Authors acknowledge that this work was possible thanks to the Programa de Ayudas de Investigation y Desarrollo (PAID-2013 3198) of the Universitat Politecnica de Valencia. Also this study was partially funded by the Spanish Ministry of Economy and Competitiveness in the frame of the COMEFF(TRA2014-59483-R) project. Authors thank Gilles Bruneaux from IFPEN for the interesting suggestions and discussions. es_ES
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation.ispartof International Journal of Multiphase Flow es_ES
dc.rights Reconocimiento - No comercial - Sin obra derivada (by-nc-nd) es_ES
dc.subject Eulerian es_ES
dc.subject Unsteady flamelet model es_ES
dc.subject Combustion modeling es_ES
dc.subject Diesel spray es_ES
dc.subject CFD es_ES
dc.subject OpenFOAM (R) es_ES
dc.subject.classification MAQUINAS Y MOTORES TERMICOS es_ES
dc.title A computational analysis of local flow for reacting Diesel sprays by means of an Eulerian CFD model es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.ijmultiphaseflow.2017.10.010 es_ES
dc.relation.projectID info:eu-repo/grantAgreement/MINECO//TRA2014-59483-R/ES/MODELOS AVANZADOS DE COMBUSTION EN SPRAYS PARA PLANTAS PROPULSIVAS EFICIENTES/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/UPV//PAID-2013-3198/
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 Pandal-Blanco, A.; García-Oliver, JM.; Novella Rosa, R.; Pastor Enguídanos, JM. (2018). A computational analysis of local flow for reacting Diesel sprays by means of an Eulerian CFD model. International Journal of Multiphase Flow. 99:257-272. https://doi.org/10.1016/j.ijmultiphaseflow.2017.10.010 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://doi.org/ 10.1016/j.ijmultiphaseflow.2017.10.010 es_ES
dc.description.upvformatpinicio 257 es_ES
dc.description.upvformatpfin 272 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 99 es_ES
dc.relation.pasarela S\359631 es_ES
dc.contributor.funder Ministerio de Economía, Industria y Competitividad es_ES
dc.contributor.funder Universitat Politècnica de València


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