The use of computational fluid dynamics (CFD) as a tool for fire protection designs in large-volume spaces is becoming more usual and accurate. Fire Dynamic Simulator (FDS) , which is the reference solver to simulate fire and smoke behaviour, has been used to model two tests of an axisymmetric pool fire of 1.36 MW and 2.34 MW under natural ventilation conditions in an experimental atrium, located in Cartagena (Spain). Different geometries of the pyramidal roof of the atrium have been modeled in order to verify their effect on the fire plume temperatures (near field) as well as air temperature close to the wall (far field). The smoke layer height has been also studied. The results of the simulation have been compared with full-scale experiments carried out in 2008. In general terms, the comparisons between experiments and simulations show good agreement, especially in the far field of the plume, for all the geometries tested. Simple models could be a good choice in this type of atrium geometries.
Director: Alexis Cantizano
Autor: Pablo Ayala
Lugar: Aula de Seminarios

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