Abstract
Processes of origination and propagation of crown fires are studied theoretically. The forest is treated as multiphase multicomponent porous reacting medium. The Reynolds equations for a turbulent flow are solved numerically taking chemical reactions into account. The method of control volume is used for obtaining the discrete analog. As a result of numerical computations, the distributions of velocity fields, temperature, oxygen concentration, volatile pyrolysis and combustion products, and volume fractions of the condensed phase at different instants are obtained. The model makes it possible to obtain dynamic contours of propagation of crown fires, which depend on the properties and states of forest canopy (reserves and type of combustible materials, moisture content, inhomogeneities in woodland, velocity and direction of wind, etc.).
| Original language | English |
|---|---|
| Pages (from-to) | 180-187 |
| Number of pages | 8 |
| Journal | Technical Physics |
| Volume | 60 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2015 |
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ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)
Cite this
Mathematical simulation of the origination and propagation of crown fires in averaged formulation. / Perminov, Valeriy Afanasievich.
In: Technical Physics, Vol. 60, No. 2, 2015, p. 180-187.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Mathematical simulation of the origination and propagation of crown fires in averaged formulation
AU - Perminov, Valeriy Afanasievich
PY - 2015
Y1 - 2015
N2 - Processes of origination and propagation of crown fires are studied theoretically. The forest is treated as multiphase multicomponent porous reacting medium. The Reynolds equations for a turbulent flow are solved numerically taking chemical reactions into account. The method of control volume is used for obtaining the discrete analog. As a result of numerical computations, the distributions of velocity fields, temperature, oxygen concentration, volatile pyrolysis and combustion products, and volume fractions of the condensed phase at different instants are obtained. The model makes it possible to obtain dynamic contours of propagation of crown fires, which depend on the properties and states of forest canopy (reserves and type of combustible materials, moisture content, inhomogeneities in woodland, velocity and direction of wind, etc.).
AB - Processes of origination and propagation of crown fires are studied theoretically. The forest is treated as multiphase multicomponent porous reacting medium. The Reynolds equations for a turbulent flow are solved numerically taking chemical reactions into account. The method of control volume is used for obtaining the discrete analog. As a result of numerical computations, the distributions of velocity fields, temperature, oxygen concentration, volatile pyrolysis and combustion products, and volume fractions of the condensed phase at different instants are obtained. The model makes it possible to obtain dynamic contours of propagation of crown fires, which depend on the properties and states of forest canopy (reserves and type of combustible materials, moisture content, inhomogeneities in woodland, velocity and direction of wind, etc.).
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U2 - 10.1134/S1063784215020176
DO - 10.1134/S1063784215020176
M3 - Article
AN - SCOPUS:84923846009
VL - 60
SP - 180
EP - 187
JO - Technical Physics
JF - Technical Physics
SN - 1063-7842
IS - 2
ER -