Numerical Study of Heptane Pool Fires on a Hollow Square Pan

• Published in: Procedia engineering Vol. 211; pp. 689 - 698
• Main Authors: Wang, Chang-jian, Wen, Jennifer
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 2018
• Subjects: fire safety; large eddy simulation; modified eddy dissipation concept; PaSR based soot model; pool fire; large eddy simulation; modified eddy dissipation concept; fire safety; pool fire; PaSR based soot model
• ISSN: 1877-7058; 1877-7058
• DOI: 10.1016/j.proeng.2017.12.065

Heptane pool fires with different mass burning rates ranging from 0.00123kg/s (corresponding to steady burning stage in experiments) to 0.0247kg/s (corresponding to fuel boiling burning stage) on a hollow square pan are numercally studied in this paper. The fireFoam, the large eddy simulation (LES)–based fire simulation code within OpenFOAM®, was employed with the modified Eddy Dissipation Concept combustion model[13] and PaSR based soot model[14]. The predictions achieved good qualitative and quantitative agreement with the experimental data[9]. Further analysis was conducted on the fire behaviour and in particular the fire merging phenomena. The dependency betwwen the key parameters such as flame height, centerline temperature and soot distributions on the mass burning rate was also discussed.