Recent progress in modeling reacting diesel sprays

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dc.contributor.authorAbraham, J.
dc.contributor.conferenceAustralian Combustion Symposium (4th: 2013 : Perth, Western Australia)
dc.date.issued2013
dc.description.abstractThis paper will begin by discussing the structure of non-reacting and reacting diesel sprays. Results from recent work employing RANS to model the non-reacting spray will be presented. It will be shown through detailed comparison with measured results that under conventional high-pressure high-temperature chamber and high-pressure injection conditions, the vaporizing diesel spray behaves like a gas jet. Several turbulence-chemistry interaction models for the reacting diesel spray will be reviewed. RANS simulation results of reacting diesel sprays in which an unsteady flamelet progress variable (UFPV) model is employed for turbulence/chemistry interactions will be discussed in detail. It is shown that the model can predict ignition delay and flame lift-off heights with reasonable accuracy. The model has also been extended to model nitrogen oxides and soot distribution in the reacting diesel sprays. Nitrogen oxides are modeled using the mechanism from Gri-Mech 3.0 and soot is modeled using a kinetic mechanism coupled with a tracer particle approach to estimate residence times within the jet. Initial simulations of the reacting diesel jet using a large eddy simulation approach coupled with a UFPV model will also be presented. Areas for further work in modeling diesel sprays will be discussed.
dc.description.statementofresponsibilityJohn Abraham
dc.description.urihttp://cfe.uwa.edu.au/news/acs2013
dc.description.urihttp://www.anz-combustioninstitute.org/
dc.identifier.citationProceedings of the Australian Combustion Symposium, Perth, WA, 6-8 November 2013 / Mingming Zhu, Yu Ma, Yun Yu, Hari Vuthaluru, Zhezi Zhang and Dongke Zhang (eds.): pp.1-14
dc.identifier.urihttp://hdl.handle.net/2440/82562
dc.language.isoen
dc.publisherThe Combustion Institue
dc.publisher.placeOnline
dc.rights© the authors
dc.source.urihttp://www.anz-combustioninstitute.org/local/papers/ACS2013-Conference-Proceedings.pdf
dc.subjectdiesel engines
dc.subjecttransient diesel sprays
dc.subjectdiesel spray modelling
dc.subjecttransient jets
dc.subjectreacting diesel sprays
dc.titleRecent progress in modeling reacting diesel sprays
dc.typeConference paper
pubs.publication-statusPublished

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