Oscillatory Propagation of a Rich Premixed Spray Flame
L.S. Kagan; J.B. Greenberg; G.I. Sivashinsky
Mathematical Modelling of Natural Phenomena (2010)
- Volume: 5, Issue: 5, page 36-45
- ISSN: 0973-5348
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topKagan, L.S., Greenberg, J.B., and Sivashinsky, G.I.. "Oscillatory Propagation of a Rich Premixed Spray Flame." Mathematical Modelling of Natural Phenomena 5.5 (2010): 36-45. <http://eudml.org/doc/197672>.
@article{Kagan2010,
abstract = {Experimental evidence points to a rich variety of physical scenarios that arise when a
laminar flame propagates through a pre-mixture of evaporating liquid fuel and a gaseous
oxidant. In this paper new results of time-dependent numerical simulations of rich
off-stoichiometric spray flame propagation in a two-dimensional channel are presented. A
constant density model is adopted, thereby eliminating the Darrieus-Landau instability. It
is demonstrated that there exists a narrow band of vaporization Damkohler numbers (the
ratio of a characteristic flow time to a characteristic evaporation time) for which the
flame propagation is oscillatory. For values outside this range steady state propagation
is attained but with a curved (cellular) flame front. The critical range for the
non-steady propagation is also found to be a function of the Lewis number of the deficient
reactant.},
author = {Kagan, L.S., Greenberg, J.B., Sivashinsky, G.I.},
journal = {Mathematical Modelling of Natural Phenomena},
keywords = {spray flame; oscillatory combustion},
language = {eng},
month = {7},
number = {5},
pages = {36-45},
publisher = {EDP Sciences},
title = {Oscillatory Propagation of a Rich Premixed Spray Flame},
url = {http://eudml.org/doc/197672},
volume = {5},
year = {2010},
}
TY - JOUR
AU - Kagan, L.S.
AU - Greenberg, J.B.
AU - Sivashinsky, G.I.
TI - Oscillatory Propagation of a Rich Premixed Spray Flame
JO - Mathematical Modelling of Natural Phenomena
DA - 2010/7//
PB - EDP Sciences
VL - 5
IS - 5
SP - 36
EP - 45
AB - Experimental evidence points to a rich variety of physical scenarios that arise when a
laminar flame propagates through a pre-mixture of evaporating liquid fuel and a gaseous
oxidant. In this paper new results of time-dependent numerical simulations of rich
off-stoichiometric spray flame propagation in a two-dimensional channel are presented. A
constant density model is adopted, thereby eliminating the Darrieus-Landau instability. It
is demonstrated that there exists a narrow band of vaporization Damkohler numbers (the
ratio of a characteristic flow time to a characteristic evaporation time) for which the
flame propagation is oscillatory. For values outside this range steady state propagation
is attained but with a curved (cellular) flame front. The critical range for the
non-steady propagation is also found to be a function of the Lewis number of the deficient
reactant.
LA - eng
KW - spray flame; oscillatory combustion
UR - http://eudml.org/doc/197672
ER -
References
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