TY - JOUR
T1 - Flame extinction by spatially periodic shear flows
AU - Kortsarts, Y.
AU - Kagan, L.
AU - Sivashinsky, G. I.
N1 - Funding Information:
These studies were supported in part by the US–Israel Binational Science Foundation under Grant no 98-00374, the Israel Science Foundation under Grants nos 40-98, 67-01 and 574-00, and the European Community Program TMR-ERB FMRX CT180201. The numerical simulations were performed at the Israel Inter-University Computer Center.
PY - 2002
Y1 - 2002
N2 - The previously studied model for nearly extinguished non-adiabatic flames propagating through a quiescent gas is extended to account for the effects due to the background flow-field. It is shown that for moderately strong large-scale periodic shear flows, their intensification results in flame speed enhancement. Yet for high Lewis number flames, there is a certain level of the flow intensity at which the flame speed reaches its maximum followed by the flame quenching. This paper is motivated by the experimentally known phenomenon of flame extinction by turbulence.
AB - The previously studied model for nearly extinguished non-adiabatic flames propagating through a quiescent gas is extended to account for the effects due to the background flow-field. It is shown that for moderately strong large-scale periodic shear flows, their intensification results in flame speed enhancement. Yet for high Lewis number flames, there is a certain level of the flow intensity at which the flame speed reaches its maximum followed by the flame quenching. This paper is motivated by the experimentally known phenomenon of flame extinction by turbulence.
UR - http://www.scopus.com/inward/record.url?scp=0036063118&partnerID=8YFLogxK
U2 - 10.1088/1364-7830/6/2/302
DO - 10.1088/1364-7830/6/2/302
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AN - SCOPUS:0036063118
SN - 1364-7830
VL - 6
SP - 189
EP - 195
JO - Combustion Theory and Modelling
JF - Combustion Theory and Modelling
IS - 2
ER -