Journal
COMBUSTION AND FLAME
Volume 157, Issue 11, Pages 2063-2077Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.combustflame.2010.04.011
Keywords
Deflagration-to-detonation transition; Methane-air explosions; Flame acceleration; Obstructed channels
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Funding
- National Institute for Occupational Safety and Health (NIOSH)
- Naval Research Laboratory (NRL) through the Office of Naval Research
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Flame acceleration and deflagration-to-detonation transitions (DDT) in large obstructed channels filled with a stoichiometric methane-air mixture are simulated using a single-step reaction mechanism. The reaction parameters are calibrated using known velocities and length scales of laminar flames and detonations. Calculations of the flame dynamics and DDT in channels with obstacles are compared to previously reported experimental data. The results obtained using the simple reaction model qualitatively, and in many cases, quantitatively match the experiments and are found to be largely insensitive to small variations in model parameters. Published by Elsevier Inc. on behalf of The Combustion Institute.
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