TY - GEN
T1 - ON THE THERMAL RUNAWAY IN SOLID FOAMS
AU - Goldfarb, Igor
AU - Goldshtein, Vladimir
AU - Kuzmenko, Grigory
N1 - Publisher Copyright:
© 1997 American Society of Mechanical Engineers (ASME). All rights reserved.
PY - 1997/1/1
Y1 - 1997/1/1
N2 - The phenomenon of the spontaneous insulation fires is investigated. An original physical model is based on the classical cell approach of multiphase media. The real complex media is modelled by a set of the identical parallel capillaries containing the thin film of the combustible fluid spread over their inner surface. The dynamics of the thermal explosion in this multiphase medium is studied. An advanced mathematical technique (integral manifold method) is used for qualitative analysis of the system dynamics. The classification of the possible scenarios of the thermal runaway is obtained analytically. Peculiarities of the dynamical regimes are investigated and their dependence on physical system parameters is analyzed. The research is focused on the regime with delay. Lower and upper analytical estimates for the delay time have been gained. The theoretical delay times estimations were verified when compared to those found experimentally. This comparison demonstrates sufficient qualitative and quantitative agreement.
AB - The phenomenon of the spontaneous insulation fires is investigated. An original physical model is based on the classical cell approach of multiphase media. The real complex media is modelled by a set of the identical parallel capillaries containing the thin film of the combustible fluid spread over their inner surface. The dynamics of the thermal explosion in this multiphase medium is studied. An advanced mathematical technique (integral manifold method) is used for qualitative analysis of the system dynamics. The classification of the possible scenarios of the thermal runaway is obtained analytically. Peculiarities of the dynamical regimes are investigated and their dependence on physical system parameters is analyzed. The research is focused on the regime with delay. Lower and upper analytical estimates for the delay time have been gained. The theoretical delay times estimations were verified when compared to those found experimentally. This comparison demonstrates sufficient qualitative and quantitative agreement.
UR - http://www.scopus.com/inward/record.url?scp=85127295752&partnerID=8YFLogxK
U2 - 10.1115/IMECE1997-0879
DO - 10.1115/IMECE1997-0879
M3 - Conference contribution
AN - SCOPUS:85127295752
T3 - ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
SP - 169
EP - 177
BT - Heat Transfer
PB - American Society of Mechanical Engineers (ASME)
T2 - ASME 1997 International Mechanical Engineering Congress and Exposition, IMECE 1997 - Heat Transfer
Y2 - 16 November 1997 through 21 November 1997
ER -