Fire Modeling, LES

Fires are notoriously difficult to model due to the wide array of complex and interacting physical phenomena including radiative heat transfer, soot formation, turbulent multiphase flow, often unknown or poorly characterized fuel properties, and a wide range of time and length scales. We are using ODT and LES to study flames and fires at increasing scales.

The video shows an LES of a fire on a slope subject to wind. The simulation was performed using FDS to study radiative heating to surroundings for firefighter safety.