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An investigation of three-dimensional fires in enclosures

An investigation of three-dimensional fires in enclosures

Markatos, NC and Pericleous, Kyriacos A ORCID: 0000-0002-7426-9999 (1983) An investigation of three-dimensional fires in enclosures. Fire Dynamics and Heat Transfer, HTD-25. pp. 115-124.

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A mathematical model has been developed to study the flame and flow structures of steady-state or transient fires in three-dimensional enclosures. The computations provide the flame location, flow patterns and distributions of velocity, temperature and species concentrations in the enclosure. The model considers turbulent flow, and uses a single-step finite-rate irreversible chemical reaction between the fuel and oxidizer. Radiation from the flame and surfaces is computed using a six-flux radiation model. Results are presented for two compartment arrangements as demonstrations of the potential of the method and also as validation comparisons with quasi-steady-state experiments. Notwithstanding the limitations of physical knowledge concerning turbulent combustion, it is found that the simple turbulence flow models used may provide a correct quantitative description of the problems under study. Improved accuracy and detailed computations of the flame structure can be derived from the present approach by including more sophisticated turbulence models, such as, for example, the ''two-fluid'' model.

Item Type: Article
Uncontrolled Keywords: Fire dynamics, Combustion in enclosures, Reacting flow
Pre-2014 Departments: School of Computing & Mathematical Sciences
School of Computing & Mathematical Sciences > Centre for Numerical Modelling & Process Analysis > Computational Science & Engineering Group
Last Modified: 02 Mar 2019 15:52

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