Quantitative prediction of combustion modes, combustion intensity, and ignition delay times

Abstract
The combustion modes, combustion intensity, and ignition delay times are quantitatively predicted by the newly-extended ignition criterion [1-3]. DME and ethanol are used to be representative of NTC and non-NTC fuels. The predictive accuracy is validated by 2-D DNS results that show a satisfactory agreement. It is demonstrated that the combustion mode and combustion intensity can be quantitatively determined by either the statistical mean Sankaran number, S" a, or the volumetric fraction of Sa < 1, FSa,S. The combustion intensity and ignition delay times can also be estimated by the predicted SaP and S"a.

Acknowledgements
This work was sponsored by the competitive research funding from KAUST. This research used the resources of the KAUST Supercomputing Laboratory (KSL).

Publisher
Combustion Institute

Conference/Event Name
12th Asia-Pacific Conference on Combustion, ASPACC 2019

Additional Links
http://www.combustionsociety.jp/aspacc19/program_final0711.html#CH0238

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