Abstract
The phenomenological analysis of backdraft, experimentally observed
in enclosure fire, has been made with the help of CFD simulation.
The current numerical simulations include the initial mixing as a #gravity current after opening of the enclosure, the #ignition, spreading
of flame
in the enclosure, the external fireball, and subsequent decay. Histories
of the calculated relative pressure pulse and temperature peak are
compared with the measured ones. The predicted #pressure and temperature
levels agree quantitatively with the experimental data. Globally,
Large Eddy Simulation combined with an EDC combustion model shows the
#feasibility for simulations of transient combustion events occurring
in an enclosure filled with a mixture of fuel in air.
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