ABSTRACT
An integrated fire spread model including several sub-models representing different phenomena of gaseous and solid combustion. The integrated model comprises of the following sub-models: a gaseous combustion model, a thermal radiation model that includes the effects of soot, and a pyrolysis model for charring combustible solids. The majority of practical fire modeling applications have been concerned with the spread of heat and smoke in complex structures and so the combustion process has either been ignored or greatly simplified. Flame spread over a combustible solid fuel is dependent on the rate at which combustible gaseous fuels are generated, i.e., the pyrolysis rate, and the rate at which the layer of char residue is formed. Flame spread over the solid surface represents an interaction between gas phase and solid phase combustion. The interplay between the gas phase and solid phase behaviors needs to be carefully dealt with.
