Mliki Bouchmel and Abbassi Mohamed Ammar and Kamel Geudri and Chrigui Mouldi and Omri Ahmed
Large Eddy Simulation of Compartment Fire with Gas Combustible
468 - 475
2014
8
2
International Journal of Mechanical and Mechatronics Engineering
https://publications.waset.org/pdf/9998095
https://publications.waset.org/vol/86
World Academy of Science, Engineering and Technology
The objective of this work is to use the Fire Dynamics Simulator (FDS) to investigate the behavior of a kerosene smallscale fire. FDS is a Computational Fluid Dynamics (CFD) tool developed specifically for fire applications. Throughout its development, FDS is used for the resolution of practical problems in fire protection engineering. At the same time FDS is used to study fundamental fire dynamics and combustion. Predictions are based on Large Eddy Simulation (LES) with a Smagorinsky turbulence model. LES directly computes the largescale eddies and the subgrid scale dissipative processes are modeled. This technique is the default turbulence model which was used in this study. The validation of the numerical prediction is done using a direct comparison of combustion output variables to experimental measurements. Effect of the mesh size on the temperature evolutions is investigated and optimum grid size is suggested. Effect of width openings is investigated. Temperature distribution and species flow are presented for different operating conditions. The effect of the composition of the used fuel on atmospheric pollution is also a focus point within this work. Good predictions are obtained where the size of the computational cells within the fire compartment is less than 110th of the characteristic fire diameter.
Open Science Index 86, 2014