Modelling of breakup processes in transient Diesel fuel sprays

Lead Research Organisation: Keele University
Department Name: Institute Env Physical Sci & App Maths

Abstract

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Publications

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Boronin S (2013) Non-modal stability of round viscous jets in Journal of Fluid Mechanics

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Boronin, S.A. (2011) Transient unstable round jets: mathematical analysis and applications in Conference proceedings (not a journal article)

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Boronin, S.A. (2012) Modal and non-modal stability of round viscous jets in Conference proceedings (not a journal article)

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Healey, J.J. (2010) Transient unstable jets: mathematical analysis and applications in Conference proceedings (not a journal article)

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Sazhin S (2013) Jet and Vortex Ring-Like Structures in Internal Combustion Engines: Stability Analysis and Analytical Solutions in Procedia IUTAM

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Sazhin, S.S. (2011) Transient Diesel fuel jets and sprays: mathematical analysis and applications in Proceedings paper (not a journal article)

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TURNER M (2010) Stability analysis and breakup length calculations for steady planar liquid jets in Journal of Fluid Mechanics

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Turner M (2011) A study of mixing in coherent vortices using braiding factors in Fluid Dynamics Research

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Turner M (2012) Wave packet analysis and break-up length calculations for an accelerating planar liquid jet in Fluid Dynamics Research

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Turner M (2012) Tollmien-schlichting wave amplitudes on a semi-infinite flat plate and a parabolic body: comparison of a parabolized stability equation method and direct numerical simulations in The Quarterly Journal of Mechanics and Applied Mathematics

 
Description The jet of fuel injected into an internal combustion engine must break up into a spray before ignition. Previous experiments revealed significant differences between theory and observation when jets undergo acceleration. We showed that this is produced by modification of the jet's velocity profile which affects its stability properties and hence its break up into a spray.
Exploitation Route This improved understanding of the fuel jet break up process will be especially useful in the development of engines designed to run on bio-fuels and Diesel-bio-fuel mixtures.
Sectors Manufacturing, including Industrial Biotechology
 
Description Our results have been incorporated into the in-house spray modelling codes developed at the Sir Harry Ricardo Laboratories, where research is carried out on internal combustion engines, at the School of Computing, Engineering and Mathematics at the University of Brighton.