Towards predictive simulations of gaseous pool fires

© 2018 The Combustion Institute. Focusing on advancing predictive fire modeling, large eddy simulations using improved approaches related to thermophysical, turbulence, combustion and radiation modeling are presented. More specifically, the consideration of a non-unity Lewis number, the use of the Hirschfelder-Curtiss diffusion model, the inclusion of differential diffusion and Soret effects, the application of the dynamic Smagorinsky model with a variable turbulent Prandtl number, an eddy dissipation concept model for combustion and the weighted-sum-of-gray-gases model for radiation have been included in a modified version of fireFoam 2.2.x. A comprehensive comparison between the predictions of the modified code against the standard version of fireFoam and experimental data of a medium-scale 22.6 kW methanol pool fire is presented. Evaporation modeling is not yet included.status: publishe