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End Gas Inhomogeneity, Autoignition and Knock
ISSN: 0148-7191, e-ISSN: 2688-3627
Published October 19, 1998 by SAE International in United States
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An advanced gas dynamic/chemistry interaction code, SPRINT2D, has been developed to simulate end gas autoignition and knock. This confirms that an earlier hypothesis of three distinct modes of autoignition was not an artefact of the previous numerical code. A comprehensive chemical kinetic scheme has predicted autoignition onset and demonstrated a mechanism for creating the end gas temperature gradients assumed in, as well as generated heat release rates for use in, SPRINT2D.
Using the combined modelling techniques, good matches between theoretical and experimental autoignition centre growth (at up to 750,000 frames/second), particle tracking and pressure development sequence at multiple transducer sites have been obtained for “thermal explosion” and “developing detonation” autoignition events.
- J. Pan - School of Mechanical Engineering, The University of Leeds
- C. G. W. Sheppard - School of Mechanical Engineering, The University of Leeds
- A. Tindall - School of Mechanical Engineering, The University of Leeds
- M. Berzins - School of Computer Studies, The University of Leeds
- S. V. Pennington - School of Computer Studies, The University of Leeds
- J. M. Ware - School of Computer Studies, The University of Leeds
CitationPan, J., Sheppard, C., Tindall, A., Berzins, M. et al., "End Gas Inhomogeneity, Autoignition and Knock," SAE Technical Paper 982616, 1998, https://doi.org/10.4271/982616.
SAE 1998 Transactions - Journal of Fuels and Lubricants
Number: V107-4 ; Published: 1999-09-15
Number: V107-4 ; Published: 1999-09-15
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