Numerical Calculation of Ignition of Wooden Structures by Heated Particles

A mathematical model of the ignition of wooden structures by “hot” particles is proposed. The spatial problem is considered in a three-dimensional formulation in Cartesian coordinates. It was found that the ignition of wood is determined by the processes of drying, pyrolysis of the dry reagent, and by the reactions of oxidation of carbon monoxide, methane, and hydrogen. The dependences of the wood ignition delay time on the initial temperature of the “heated” particles and their quantity were found. In some cases, a qualitative comparison of the calculation results with the known data was noted.