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Análisis CFD de la condensación en el EGR de baja presión bajo condiciones de flujo pulsante

Authors: García Felis, Daniel;

Análisis CFD de la condensación en el EGR de baja presión bajo condiciones de flujo pulsante

Abstract

[ES] El objetivo del presente documento será el de analizar la influencia que tiene el flujo pulsante en la formación de condesados en la unión entre el aire fresco y la recirculación de gases de escape de baja presión (LP-EGR). El análisis pretende observar el cambio en los fenómenos de mezcla cuando se considera el flujo pulsante y determinar la mejor configuración numérica balanceando el coste computacional y la precisión. El estudio se ha realizado en diferentes puntos de operación del motor, con el objetivo de cuantificar la condensación de agua en diferentes condiciones. [EN] The objective of this document is the investigation of the influence that the pulsating flow has on the formation of condensates in the junction between fresh air and the recirculation of low pressure exhaust gases (LP-EGR). The analysis aims to observe the change in the mixing phenomena when the pulsating flow is considered and to determine the best numerical configuration balancing the computational cost and the precision. The study was carried out at different points of operation of the engine, with the aim of quantifying the condensation of water in different conditions. [CA] L’objectiu del present document és el d’analitzar la influència que té el flux polsant enla formació de condesats en la unió entre l’aire fresc i la recirculació de gasos d’escapa-ment de baixa pressió (LP-EGR).L’anàlisi pretén observar el canvi en els fenòmens de mescla quan es considera el fluxpolsant i determinar la millor configuració numèrica balancejant el cost computacional ila precisió.L’estudi s’ha realitzat en diferents punts d’operació del motor, amb l’objectiu de quanti-ficar la condensació d’aigua en diferents condicions.

Keywords

Compresor, MCIA, URANS, Máster Universitario en Ingeniería Aeronáutica-Màster Universitari en Enginyeria Aeronàutica, Fenómenos de mezcla, Compressor, MAQUINAS Y MOTORES TERMICOS, Mixing Phenomena

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average