Numerical simulation of a pool fire

Thermo-fluid mechanical characteristics as well as flame structure of a pool fire were numerically simulated in this study. The small scale pool fire was treated as a gaseous jet flame with low initial velocity as an approximation. The combustion model postulated infinitely fast chemical reaction and the soot formation model included soot nucleation, surface growth, coagulation, thermophoresis, and oxidation. Valuable data were obtained in the temperature distribution, velocity profiles, soot volume fraction and major species concentrations. Especially, the periodic formation of the large scale structures were successfully simulated. Its frequency agreed well with experimental results.