Local to continental scale coupled fire-atmosphere simulation of large industrial fire plume

Baggio, Roberta; Filippi, Jean Baptiste; Truchot, Benjamin; Couto, Flavio T.

doi:10.1016/j.firesaf.2022.103699

Cited by 5 publications

(5 citation statements)

References 23 publications

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“…The smoke plume is shown using the relative smoke tracer concentration variable (S), emitted where and when fire is present [26]. The smoke tracer S is a passive scalar field injected at a rate of 1 m 2 •s −1 wherever the fire is present.…”

Section: Forefire Fire Propagation Model Configurationmentioning

confidence: 99%

“…Moreover, high-resolution simulations enhance the accuracy of such predictions by considering factors such as wind patterns, terrain, and fuel types [23]. The Meso-NH-ForeFire model is one of the numerical modeling tools able to represent the complex fire-atmosphere system and has been successfully used in the last decade [24][25][26][27][28]. Meso-NH is an open area, research Numerical Weather Prediction model which can be used to forecast atmospheric motions on a large range of scales [29], spanning from thousands of kilometers to a few meters.…”

Section: Introductionmentioning

confidence: 99%

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Triggering Pyro-Convection in a High-Resolution Coupled Fire–Atmosphere Simulation

Couto,

Filippi,

Baggio

et al. 2024

Fire

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This study aimed to assess fire–atmosphere interactions using the fully coupled Meso-NH–ForeFire system. We focused on the Pedrógão Grande wildfire (28,914 ha), which occurred in June 2017 and was one of the deadliest and most damaging fires in Portugal’s history. Two simulations (control and fully coupled fire–atmosphere) were performed for three two-way nested domains configured with horizontal resolutions of 2 km, 0.4 km, and 0.08 km, respectively, in the atmospheric model Meso-NH. Fire propagation was modeled within the innermost domain with ForeFire, which solves the fire front with a 20 m resolution, producing the heat and vapor fluxes which are then injected into the atmospheric model. A simplified homogeneous fuel distribution was used in this case study. The fully coupled experiment helped us to characterize the smoke plume structure and identify two different regimes: (1) a wind-driven regime, with the smoke plume transported horizontally southward and in the lower troposphere, and (2) a plume-dominated regime, in which the simulated smoke plume extended vertically up to upper levels, favoring the formation of a pyro-cloud. The simulations were compared, and the results suggest that the change in the fire regime was caused by an outflow that affected the main fire front. Furthermore, the fully coupled simulation allowed us to explore the change in meteorology caused by an extreme fire, namely through the development of a pyro-cloud that also induced outflows that reached the surface. We show that the Meso-NH–ForeFire system may strongly contribute to an improved understanding of extreme wildfires events and associated weather phenomena.

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Section: Forefire Fire Propagation Model Configurationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Triggering Pyro-Convection in a High-Resolution Coupled Fire–Atmosphere Simulation

Couto,

Filippi,

Baggio

et al. 2024

Fire

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“…Eulerian approaches can be considered as advanced simulators of dispersion and have been applied to an open-cut coal mine fire in Australia [6], though applications may be limited because there is a requirement for significant computational resources [44]. CFD approaches are also very computationally expensive [40], but provide the highest resolution modelling of all systems and are ideal for simulating dispersion over small areas (< 1km) that may have complex terrain and infrastructure. An example is the CFD modelling of the accidental release of vinyl chloride on a small geographical scale (within the boundary of a chemical works) [41].…”

Section: Hysplit (Hybrid Single Particle Lagrangian Integrated Trajec...mentioning

confidence: 99%

“…An example is the CFD modelling of the accidental release of vinyl chloride on a small geographical scale (within the boundary of a chemical works) [41]. One method of utilising CFD in wider scale dispersion calculations is in a coupled model, whereby CFD is used to model the fire conditions and initial development of the plume, followed by mesoscale meteorological modelling of dispersion over a wider area [40].…”

Section: Hysplit (Hybrid Single Particle Lagrangian Integrated Trajec...mentioning

confidence: 99%

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The Impact of Industrial Fires in Urban Settings: Monitoring, Modelling, Health, and Environmental Justice Perspectives

Deary,

Griffiths

2024

Preprint

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Industrial fires at facilities including waste management sites, warehouses, factories, chemical works and fuel storage depots are relatively frequent occurrences. Often, these fires occur adjacent to urban communities and result in ground-level airborne pollutant concentrations that are well above guideline values. Land, water, livestock and crops may also be contaminated by the emissions and by firefighting activities. Moreover, impacted communities tend to have a higher proportion of minority ethnic populations, individuals with underlying health vulnerabilities, as well as those of lower socio-economic status. Nevertheless, this is an aspect of air quality that is under-researched, and so this review aims to highlight the public health hazards associated with industrial fires and the need for an effective, coordinated, public health response. We also review the range of monitoring techniques that have been utilised in such fires and highlight the role of dispersion modelling in predicting plume trajectories and in estimating population exposure. We recommend establishing 1-h guideline values for particulate matter to facilitate timely public health interventions and we highlight the need to review regulatory and technical controls for sites prone to fires, particularly in the waste sector.

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Bayesian inversion of emissions from large urban fire using in situ observations

Launay,

Hergault,

Bocquet

et al. 2024

Atmospheric Environment

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Local to continental scale coupled fire-atmosphere simulation of large industrial fire plume

Cited by 5 publications

References 23 publications

Triggering Pyro-Convection in a High-Resolution Coupled Fire–Atmosphere Simulation

Triggering Pyro-Convection in a High-Resolution Coupled Fire–Atmosphere Simulation

The Impact of Industrial Fires in Urban Settings: Monitoring, Modelling, Health, and Environmental Justice Perspectives

Bayesian inversion of emissions from large urban fire using in situ observations

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