Large eddy simulation of upward flame spread on PMMA walls with a fully coupled fluid–solid approach

Fukumoto, Kazui; Wang, Changjian; Wen, Jennifer X.

doi:10.1016/j.combustflame.2017.11.012

Cited by 37 publications

(54 citation statements)

References 62 publications

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“…In the present study, we implement AMR in fireFoam, a solver developed by FM Global to simulate complex fire phenomena [10,11]. Designed for simulations of industrial fire problems, fireFoam has been used previously to study problems ranging from non-reacting buoyant plumes [14,15] and pool fires with static [10,16,17] and dynamic meshes (i.e., using AMR) [12], to larger room-scale fires [18,19], pyrolysis modeling [20][21][22][23][24], and fire suppression [22,25].…”

Section: Computational Framework: Wildfirefoammentioning

confidence: 99%

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Efficient simulation of turbulent diffusion flames in OpenFOAM using adaptive mesh refinement

Lapointe

Wimer

Glusman

et al. 2020

Fire Safety Journal

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Wildland fires are complex multi-physics problems that span wide spatial scale ranges. Capturing this complexity in computationally affordable numerical simulations for process studies and "outer-loop" techniques (e.g., optimization and uncertainty quantification) is a fundamental challenge in reacting flow research. Further complications arise for propagating fires where a priori knowledge of the fire spread rate and direction is typically not available. In such cases, static mesh refinement at all possible fire locations is a computationally inefficient approach to bridging the wide range of spatial scales relevant to wildland fire behavior. In the present study, we address this challenge by incorporating adaptive mesh refinement (AMR) in fireFoam, an OpenFOAM solver for simulations of complex fire phenomena. The AMR functionality in the extended solver, called wildFireFoam, allows us to dynamically track regions of interest and to avoid inefficient over-resolution of areas far from a propagating flame. We demonstrate the AMR capability for fire spread on vertical panels and for large-scale fire propagation on a variable-slope surface that is representative of real topography. We show that the AMR solver reproduces results obtained using much larger statically refined meshes, at a substantially reduced computational cost.

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Section: Computational Framework: Wildfirefoammentioning

confidence: 99%

“…In the solid phase, one-dimensional conservation equations are solved for mass, enthalpy, and species, given as [23,26,27] ∂ρ…”

Section: Physical Treatmentmentioning

confidence: 99%

Efficient simulation of turbulent diffusion flames in OpenFOAM using adaptive mesh refinement

Lapointe

Wimer

Glusman

et al. 2020

Fire Safety Journal

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“…The in-house version of FireFOAM 2.2.x, which contains the authors' previous developments [12,18,19,22] is employed. The momentum and continuity equations are solved by Pressure-Implicit with Splitting of Operators (PISO) with the outer iteration (termed PIMPLE [9]).…”

Section: Methodsmentioning

confidence: 99%

“…1. Following our previous study [19], the time scale of the laminar combustion reaction τdiff was estimated based on viscous diffusion, whereas the time scale of the turbulent combustion reaction τEDC was computed by Chen et al's modified EDC [12]. The minimum of the two was used as the reaction time scale.…”

Section: Combustion Modellingmentioning

confidence: 99%

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Numerical simulation of small pool fires incorporating liquid fuel motion

Fukumoto

Wen

et al. 2020

Combustion and Flame

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Experimental and theoretical study on horizontal flame spread through arrays of wooden dowels

Jiang

Xiao

et al. 2022

Fire and Materials

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Flame spread along discrete fuel element is of great interest for both fundamental science and fire prevention, whose combustion properties may be different from those of homogenous materials. It has been a long time for researchers in fire science to find a simple and effective method to construct a discrete flame spread model. This work was motivated by the research of 2-D horizontal discrete flame spread behaviors with different spacings and rows, establishing the prediction model of ignition time and global mass loss rate (MLR). In this work, burning characteristics of the 2-D discrete flame spread were experimentally studied with six different row numbers (1-11 with an interval of 2) of cylindrical dowels (birch wood, 3 mm diameter Â 50 mm height) under three selected spacings (6, 7, and 8 mm). Based on the heat transfer model developed, the theoretical models of ignition time and MLR were obtained and validated. Moreover, combined with previous studies, the numerical correlation between dimensionless flame height and dimensionless heat release rate for the 2-D horizontal discrete flame spread scenario was established. This study provided an insight into the horizontal discrete flame spread mechanism in the aspect of heat and mass transfer, which may be applied in the prediction and assessment of discrete fuel fires in reality.

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Large eddy simulation of upward flame spread on PMMA walls with a fully coupled fluid–solid approach

Cited by 37 publications

References 62 publications

Efficient simulation of turbulent diffusion flames in OpenFOAM using adaptive mesh refinement

Efficient simulation of turbulent diffusion flames in OpenFOAM using adaptive mesh refinement

Numerical simulation of small pool fires incorporating liquid fuel motion

Experimental and theoretical study on horizontal flame spread through arrays of wooden dowels

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