Smolder Spread Through Thin Horizontal Fuel
Layers
Author(s)
C. Di Blasi
Abstract
Smolder spread through thin horizontal fuel
layers
C. Di Blasi
Dipartimento di Ingegneria Chimica,
Universitd degli Studi di Napoli Federico II,
PmzWe 7. Tecc/wo, (90^^5 Mzpo/z, 7(a/?/
ABSTRACT
Two-dimensional smoldering combustion of a thin layer of cellulosic par-
ticles, in quiescent air, is numerically simulated. The mathematical model
describes pressure and velocity variations through the Darcy law. Mass and
energy balance equations are used to describe convective and diffusive trans-
port of chemical species and convective, radiative and conductive heat trans-
fer. In conjuction with transport phenomena, chemical processes are also
taken into account to describe endothermic pyrolytic and exothermic oxida-
tive degradation of the solid to volatiles and char and further exothermic
oxidation of char. The solution is computed numerically through a finite dif-
ference formulation of the model equations, based on the hybrid scheme. The
splitting of the operators
Keywords
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