Hydrodynamic aspects of end-gas autoignition

Leonid Kagan*, Gregory Sivashinsky

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

Within the small-Mach-number approximation, employing an appropriate scale-separation procedure, a reduced zero-dimensional model for deflagrative combustion occurring in a closed vessel is formulated and analyzed. It is shown that progressive compression of the unburned gas (end-gas) induced by the burned gas thermal expansion may result in end-gas autoignition, provided the vessel is large enough. A theoretical interpretation is given to the effect of the flame velocity reversal occurring prior to the autoignition event.

Original languageEnglish
Pages (from-to)857-863
Number of pages7
JournalProceedings of the Combustion Institute
Volume34
Issue number1
DOIs
StatePublished - 2013

Funding

FundersFunder number
United States-Israel Binational Science Foundation2006 - 151
Israel Science Foundation- 32/09

    Keywords

    • Confined burning
    • End-gas autoignition
    • Knocking combustion

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