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dc.contributor.authorSow, Aliou
dc.contributor.authorJaasim, Mohammed
dc.contributor.authorHernandez Perez, Francisco
dc.contributor.authorIm, Hong G.
dc.date.accessioned2020-12-30T13:12:38Z
dc.date.available2020-12-30T13:12:38Z
dc.date.issued2017-01-01
dc.identifier.urihttp://hdl.handle.net/10754/666776
dc.description.abstractRegulations in CO2 emissions have led to the development of downsized, highly boosted and direct injection technologies that enhance power density and fuel consumption in Spark Ignition (SI) engines. Despite these enhancements, SI engines are prone to exhibit uncontrolled pre-ignition, whose occurrence, specially at low speed and high load, can trigger detonation development which is associated to violent peak pressures and pressure oscillations that can damage the engine. The uncontrolled combustion is a major challenge to overcome for the new generation of SI engines to be widely used. Here, we studied detonation development using high resolution direct numerical simulations of a closed one-dimensional combustion chamber. A highly reactive hydrogen-oxygen mixture with a detailed chemical reaction mechanism is used in this study. Unlike previous studies where bulk mixture properties were arbitrarily defined, we used results from engine simulations obtained with the CONVERGE software to set the initial bulk mixture properties. Depending on the initial conditions two different paths to detonation development were identified: 1) auto-ignition near the wall followed by detonation combustion and 2) transition of the initial propagating flame to detonation combustion mode through flame acceleration.
dc.description.sponsorshipThe work presented in this paper was sponsored by KAUST and Saudi Aramco under the FUELCOM II Project. The computational work utilized resources from the KAUST Supercomputing Laboratory.
dc.publisherCombustion Institute
dc.relation.urlhttps://research.kaust.edu.sa/en/publications/a-computational-study-of-pre-ignition-to-detonation-transition-in
dc.rightsArchived with thanks to Combustion Institute
dc.titleA computational study of pre-ignition to detonation transition in a one-dimensional chamber
dc.typeConference Paper
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.contributor.departmentMechanical Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.contributor.departmentClean Combustion Research Center
dc.conference.date2017-12-10 to 2017-12-14
dc.conference.name11th Asia-Pacific Conference on Combustion, ASPACC 2017
dc.conference.locationSydney, NSW, AUS
dc.eprint.versionPre-print
dc.identifier.volume2017-December
kaust.personSow, Aliou
kaust.personJaasim, Mohammed
kaust.personHernandez Perez, Francisco
kaust.personIm, Hong G.
dc.identifier.eid2-s2.0-85046540335
kaust.acknowledged.supportUnitKAUST Supercomputing Laboratory
kaust.acknowledged.supportUnitSupercomputing Laboratory.


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