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Study of vertical upward flame spread on charring materials—Part II: Numerical simulations
Simulation results, obtained by means of application of an enthalpy‐based pyrolysis model, are presented. The ultimate focus concerns the potential of the model to be used in flame spread simulations. As an example we discuss vertically upward flame spread over a charring material in a parallel plate configuration. First, the quality of the pyrolysis model is illustrated by means of cone calorimeter results for square (9.8 cm × 9.8 cm exposed area), 1.65 cm thick, horizontally mounted MDF samples. Temperatures are compared at the front surface and inside the material, for different externally imposed heat fluxes (20, 30 and 50 kW/m2), for dry and wet samples. The mass loss rate is also considered. Afterwards, vertically upward flame spread results are reported for large particle board plates (0.025 m thick, 0.4 m wide and 2.5 m high), vertically mounted face‐to‐face, for different horizontal spacings between the two plates. The simulation results are compared to experimental data, indicating that, provided that a correct flame height and corresponding heat flux are applied as boundary conditions, flame spread can be predicted accordingly, using the present pyrolysis model. Copyright © 2010 John Wiley & Sons, Ltd.
Study of vertical upward flame spread on charring materials—Part II: Numerical simulations
Simulation results, obtained by means of application of an enthalpy‐based pyrolysis model, are presented. The ultimate focus concerns the potential of the model to be used in flame spread simulations. As an example we discuss vertically upward flame spread over a charring material in a parallel plate configuration. First, the quality of the pyrolysis model is illustrated by means of cone calorimeter results for square (9.8 cm × 9.8 cm exposed area), 1.65 cm thick, horizontally mounted MDF samples. Temperatures are compared at the front surface and inside the material, for different externally imposed heat fluxes (20, 30 and 50 kW/m2), for dry and wet samples. The mass loss rate is also considered. Afterwards, vertically upward flame spread results are reported for large particle board plates (0.025 m thick, 0.4 m wide and 2.5 m high), vertically mounted face‐to‐face, for different horizontal spacings between the two plates. The simulation results are compared to experimental data, indicating that, provided that a correct flame height and corresponding heat flux are applied as boundary conditions, flame spread can be predicted accordingly, using the present pyrolysis model. Copyright © 2010 John Wiley & Sons, Ltd.
Study of vertical upward flame spread on charring materials—Part II: Numerical simulations
Wasan, S. R. (author) / Rauwoens, P. (author) / Vierendeels, J. (author) / Merci, B. (author)
Fire and Materials ; 35 ; 261-273
2011-08-01
16 pages
Article (Journal)
Electronic Resource
English
Study of vertical upward flame spread on charring materials—Part II: Numerical simulations
Online Contents | 2011
|Study of vertical upward flame spread on charring materials-Part II: Numerical simulations
British Library Online Contents | 2011
|Study of pyrolysis and upward flame spread on charring materials-Part I: Experimental study
British Library Online Contents | 2011
|Study of pyrolysis and upward flame spread on charring materials—Part I: Experimental study
Online Contents | 2011
|