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The numerical simulation of the noncharring pyrolysis process and fire development within a compartment

The numerical simulation of the noncharring pyrolysis process and fire development within a compartment

Jia, F., Galea, E.R. and Patel, M.K. (1999) The numerical simulation of the noncharring pyrolysis process and fire development within a compartment. Applied Mathematical Modelling, 23 (8). pp. 587-607. ISSN 0307-904X (doi:10.1016/S0307-904X(99)00003-7)

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Abstract

A pyrolysis model for noncharring solid fuels is presented in this paper. Model predictions are compared with experimental data for the mass loss rates of polymethylmethacrylate (PMMA) and very good agreement is achieved. Using a three-dimensional CFD environment, the pyrolysis model is then coupled with a gas-phase combustion model and a thermal radiation model to simulate fire development within a small compartment. The numerical predictions produced by this coupled model are found to be in very good agreement with experimental data. Furthermore, numerical predictions of the relationship between the air entrained into the fire compartment and the ventilation factor produce a characteristic post-flashover linear correlation with constant of proportionality 0.38 kg/sm5=2. The simulation results also suggest that the model is capable of predicting the onset of "flashover" and "post-flashover" type behaviour within the fire compartment.

Item Type: Article
Additional Information: [1] First published online: 17 June 1999. [2] Published in print: August 1999. [3] CMS Ref. No: 99/22.
Uncontrolled Keywords: fire field model, computational fluid dynamics, (CFD), pyrolysis, solid fuel combustion, flashover
Subjects: Q Science > QA Mathematics > QA76 Computer software
T Technology > T Technology (General)
Pre-2014 Departments: School of Computing & Mathematical Sciences
School of Computing & Mathematical Sciences > Centre for Numerical Modelling & Process Analysis
School of Computing & Mathematical Sciences > Centre for Numerical Modelling & Process Analysis > Computational Mechanics & Reliability Group
School of Computing & Mathematical Sciences > Centre for Numerical Modelling & Process Analysis > Computational Science & Engineering Group
School of Computing & Mathematical Sciences > Centre for Numerical Modelling & Process Analysis > Fire Safety Engineering Group
School of Computing & Mathematical Sciences > Department of Mathematical Sciences
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Last Modified: 14 Oct 2016 08:59
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
URI: http://gala.gre.ac.uk/id/eprint/183

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