SALMON, Fabien; LACANETTE, Delphine; MINDEGUIA, Jean-Christophe; SIRIEIX, Colette; BELLIVIER, Axel; LEBLANC, Jean-Claude; FERRIER, Catherine

doi:10.1016/j.ijthermalsci.2019.01.025

Institut de Mécanique et d'Ingénierie [I2M]

LACANETTE, Delphine
Institut de Mécanique et d'Ingénierie [I2M]

MINDEGUIA, Jean-Christophe
Institut de Mécanique et d'Ingénierie [I2M]

Langue

Article de revue

Ce document a été publié dans

International Journal of Thermal Sciences. 2019-05-01, vol. 139, p. 144-159

Résumé en anglais

A numerical simulation of a wood fire in a natural gallery is compared with experimental data. Temperatures, velocities, gases and particles concentrations as well as soot deposits are the measured quantities of the experiment. We expose in this article the comparison with a simulation performed by the open-source solver FireFOAM. In order to improve the accuracy of the modeling, the initial numerical tool has been modified. A boundary condition for temperature based on energy conservation has been added to better estimate thermal losses at the walls. A hypothesis regarding vertical velocity in a confined geometry containing a localized fire is also made. By assuming that the velocity is exclusively horizontal, the error between simulation and experiment is reduced. With the aim of comparing the temperature measurements with the simulation accurately, the thermocouple model commonly used in FireFOAM has been changed. The limitations of the previous models are also discussed. Then, two combustion side issues are presented. First, the model of Beresnev-Chernyak computes soot deposit on walls. Second, the fractional effective doses (FED) for toxicity, radiation and heat hazards have been implemented to evaluate the safety of the environment during the fire.< Réduire

Mots clés en anglais

Localized wood fire

Large eddy simulation

FireFOAM

Underground

Toxicity

Rock art cave

URI

https://oskar-bordeaux.fr/handle/20.500.12278/112479

DOI

http://dx.doi.org/10.1016/j.ijthermalsci.2019.01.025

Unités de recherche

Institut de Mécanique et d’Ingénierie de Bordeaux (I2M) - UMR 5295

Voir/Ouvrir

Métadonnées

Partager cette publication !

Licence d’utilisation du document

Localized fire in a gallery: Model development and validation

Langue

Ce document a été publié dans

Résumé en anglais

Mots clés en anglais

URI

DOI

Unités de recherche