TY - JOUR
T1 - Numerical study of the effect of heat losses on self-propagating reactions in multilayer foils
AU - Jayaraman, Swaminathan
AU - Mann, Adrian B.
AU - Reiss, Michael
AU - Weihs, Timothy P.
AU - Knio, Omar M.
N1 - Funding Information:
The authors would like to acknowledge financial support of 3M Corporation, NSF through Award DMR-9702546, ARL/Advanced Materials Characterization Program through Award No. 019620047, and NSF’s Materials Research in Science and Engineering Center on Nanostructured Materials at JHU. Computations have been performed at the National Center for Supercomputing Applications. 5 6 7 9 10
PY - 2001/1
Y1 - 2001/1
N2 - Current models of self-propagating reactions in multilayer foils have been successful in predicting the velocity and structure of reaction fronts, as well as their variation with individual layer thickness and premixing in the as-deposited state. Depending upon the parameter regime, the propagation of the reaction front has been shown to occur either in a steady manner or in an oscillatory manner. So far, however, existing models have ignored the effect of heat losses on the reaction. In this study, the effect of radiative and conductive heat losses on the propagation of reaction fronts in multilayers is investigated numerically. Heat losses are shown to decrease the flame speed and the magnitude of the oscillations, and to increase the period of the oscillations. In the parameter range considered, radiative heat losses have a much smaller effect on reaction propagation than conductive heat losses.
AB - Current models of self-propagating reactions in multilayer foils have been successful in predicting the velocity and structure of reaction fronts, as well as their variation with individual layer thickness and premixing in the as-deposited state. Depending upon the parameter regime, the propagation of the reaction front has been shown to occur either in a steady manner or in an oscillatory manner. So far, however, existing models have ignored the effect of heat losses on the reaction. In this study, the effect of radiative and conductive heat losses on the propagation of reaction fronts in multilayers is investigated numerically. Heat losses are shown to decrease the flame speed and the magnitude of the oscillations, and to increase the period of the oscillations. In the parameter range considered, radiative heat losses have a much smaller effect on reaction propagation than conductive heat losses.
UR - http://www.scopus.com/inward/record.url?scp=0035192270&partnerID=8YFLogxK
U2 - 10.1016/S0010-2180(00)00192-9
DO - 10.1016/S0010-2180(00)00192-9
M3 - Article
AN - SCOPUS:0035192270
SN - 0010-2180
VL - 124
SP - 178
EP - 194
JO - Combustion and Flame
JF - Combustion and Flame
IS - 1-2
ER -