TY - JOUR
T1 - An elementary model for the transition from conductive to penetrative burning in gas-permeable explosives
AU - Kagan, Leonid
AU - Sivashinsky, Gregory
N1 - Funding Information:
This research has been supported by the US–Israel Binational Science Foundation (Grant 2006-151) and the Israel Science Foundation (Grant 350/05).
PY - 2009/2
Y1 - 2009/2
N2 - The experimentally known phenomenon of spontaneous transition from slow conductive to fast penetrative (convective) burning in a confined gas-permeable explosive is discussed. A reduced quasi-linear model, involving only the most essential physical ingredients, is formulated. A good qualitative agreement between theoretical and experimental dependencies is obtained. Similar to the previously studied case of an inert porous matrix filled with an explosive gas, the transition is triggered by a localized autoignition in the extended resistance-induced preheat zone gradually formed ahead of the advancing deflagration. The conventional concept of penetrative burning is re-examined.
AB - The experimentally known phenomenon of spontaneous transition from slow conductive to fast penetrative (convective) burning in a confined gas-permeable explosive is discussed. A reduced quasi-linear model, involving only the most essential physical ingredients, is formulated. A good qualitative agreement between theoretical and experimental dependencies is obtained. Similar to the previously studied case of an inert porous matrix filled with an explosive gas, the transition is triggered by a localized autoignition in the extended resistance-induced preheat zone gradually formed ahead of the advancing deflagration. The conventional concept of penetrative burning is re-examined.
KW - Convective burning
KW - Deflagration-to-detonation transition
KW - Gas-penetrative burning
UR - https://www.scopus.com/pages/publications/58049161000
U2 - 10.1016/j.combustflame.2008.09.002
DO - 10.1016/j.combustflame.2008.09.002
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AN - SCOPUS:58049161000
SN - 0010-2180
VL - 156
SP - 531
EP - 538
JO - Combustion and Flame
JF - Combustion and Flame
IS - 2
ER -