NUMERICAL ESTIMATION OF FLAME SPREAD OF RUBBER

초록

Numerical simulations of fire behavior such as fire ignition and propagation are largely used in the fire-safety design of infrastructure, building, transportation, etc. One of the main difficulties in improving the quality and reproducibility of numerical simulations of real-world fire phenomena is that pyrolysis properties have been rarely reported in literature. Inverse problems in pyrolysis for obtaining pyrolysis properties have been studied. To verify the pyrolysis properties, a numerical simulation of flame spread was conducted using pyrolysis properties obtained in the inverse problem. The apparatus used for spread of flame conforms to ISO 5658-2. Numerical estimation was performed, and the extinguishing time, critical heat flux, and the length of flame spread were obtained and compared with test results.