Jean-Baptiste Filippi - Institut d'études scientifiques de Cargèse ...

2013
13 Mai
18 Mai
NUMERICAL SIMULATION
OF FOREST FIRES, FROM
COMBUSTION TO
EMISSIONS
Jean-Baptiste Filippi
Université de Corse
20250 CORTE
France
filippi@univ-corse.fr
Direction scientifique :
Giovanna Chimini
Contact :
Dominique Donzella
tél : 04 95 26 80 40
www.iesc.univ-corse.fr

Edito
While it is well known that large wildland fires can create their "own weather", most numerical
models devoted to large wildfire simulation neglected the feedback from the fire to the
atmosphere. The availability of high performance computers and finer models opened the way for
simulation to investigate coupled wildfire/atmospheric effects at different scales ranging from the
flame to smoke dispersion across a continent.
The objective of the workshop is to present and exchange about the recent advances in wildfire
combustion in a remote, stimulating and mind-lifting environment. Specific focus will be given to
the different numerical approaches developed for the simulation of turbulent flame, fire front
dynamics, fire emissions, atmospheric chemistry and model evaluation.
The week is divided in two parts:
The first three days host a small workshop that holds the conclusion and of the IDEA project («
Incendies de forêts : simulation de la dynamique et des émissions atmosphériques par couplage
de code », Forest Fires: propagation dynamics and atmospheric emissions simulation by code
coupling) whose object was to create a reliable and integrated multi-scale approach for largewildfire
simulation.
The last two days are open for contributions related to the development, use and validation of
numerical tools in the field of forest fire science.
The last session will be devoted to present these advances to fire managers, in order to exchange
with decision makers, which expect pragmatic answers.
Selected and extended articles will be published in a special issue of « Natural Hazards and Earth
System Sciences », an Open Access Journal of the European Geosciences Union.
Concept and Format
The provisional program of the conference is divided into four main topics representing the main
scales involved in wildfire combustion:
Combustion scale, solid to gaseous phase, combustion and associated atmospheric emissions.
Flame scale, turbulent flame to fire burn experiments and analysis.
Wildfire scale, large wildfire simulation, interaction with atmosphere dynamics
Atmospheric scale, chemistry, impact of the fire at the regional scale and model evaluation.
Results, methods and software will be presented on the last day that is open to wildfire decision
makers, followed by discussions on future projects and objectives of the field.

Cargese 2013 – Numerical Wildfires – Program –
Monday, May 13 – Chemistry
9:00 -10:30 Welcome / Coffee break
Chair : Nasser Darabiha., Céline Mari
10:30 Mélanie Rochoux:,Turbulent combustion of pine fuels .11:00
Yolanda Perez: IDEA Project: Chemical kinetics of degradation
gases of vegetation.
11:30 Toussaint Barboni: A study on wildfire smoke toxicity.
12:00 Dominique Morvan: Numerical 2D simulation at flame scale,
estimation of front combustion.
12:30 – 14:00 Lunch
16:00 Round tables, Numerical (Chair Arnaud Trouvé) :
Do we need better pyrolysis models ?
- Implication in wildfire dynamics.
- Implication in pollution.
- Numerical approaches, AVBP, FireFoam
17:00 Round Tables, Laboratory (Chair Y. Perez)
Which experiments at flame scale ?
- Use of a large calorimeter.
- PIV in wildfire propagation.
19:00 Welcome reception, aperitif.
Tuesday, May 14 – Fire
Chair Dominique Morvan, Christine Lac
09:00 IDEA project: Atmosphere
Valery Masson: Overview of SURFEX/MesoNH physics
09:45 IDEA project: Front.
Jean Baptiste Filippi. Wildfire front tracking and fluxes
models. Model reduction from flame scale.
10:30 Coffee break
11:00 Jonathan Beezley/Adam Kochansky: Hands on with WRF
Fire.
12:30 – 14:00 Lunch
16:00 JB Filippi : Hands on with MesoNH/ForeFire.
17:00 Round Tables, Experiments (Chair Craig Clements):
Experiments at large scale.
- Instruments,
- available datasets.
20:00 – 21:30 Conference Dinner
Wednesday, May 15 – Large scale
Chair Jean-Baptiste FIlippi, Vivien Mallet
09:00 IDEA project: Tools, ensembles, evaluation, Vivien Mallet :
Model evaluation based on a large observation dataset.
09:45 IDEA project: Atmosphere, Céline Mari, experiments at large
scale, chemistry.
10:30 Coffee break
11:00 Round Tables, Simulation (Chair Mary-Ann Jenkins) :
- Next computational challenges.
- Simulation ensembles.
- New risk criterions.
- Simulation estimation.
- Data assimilation, on front, risk.
12:30 – 14:00 Lunch
15:00 – 19:00 Boat ride
19:00 Roundtable restitution meetings.
Thursday, may 16 – Workshop
Chair Frédéric Bosseur
09:00 Roundtables restitutions (Numerical + Experimental: 15'
each).
09:30 Arnaud Trouvé: Numerical Simulation of Compartment Fire
Dynamics
10:00 Mélanie Rochoux: Data-driven Simulations of Regional-scale
Wildfire Spread using Ensemble-based Data Assimilation
10:30 Coffee break
11:00 Susanna Strada: Prediction of fire smoke exposure and air
quality degradation: toward a high resolution coupled fireatmosphere
model
11:30 Yolanda Perez Modeling the emissions of NO from vegetation
fires with a global model
12:00 Virginie Tihay Global characterization of spreading fires at
laboratory scale
12:30 – 14:00 Lunch
14:00 Ana Isabel Miranda Air quality modelling in Portugal
14:30 Mohamed Drissi Modelling the spreading of forest fire
propagation
15:00 Steven Krueger Multi–Scale Modeling of Wind and Wildfires
15:30 Gianni Pagnini Modelling turbulence effects in wildland fire
propagation by the randomized level-set method”
16:00 Coffee break
16:30 Oriol Rios Forecasting wildfire dynamics for wind-driven
conditions using huygens’ front expansion and tangent
linearisation
17:00 Jacques Henri Balbi Convection processes in reduces
wildland fire spread model.
17:30 Mark Finney Fundamental Investigations into Wildland Fire
Spread
21:30 Albert Simeoni (Video) Wildfire modelling at WPI.
Friday, may 17 – Open Workshop
Chair Céline Mari
09:00 Roundtables restitutions (Fire+ Large-scale: 15' each). .
09:30 Mary-Ann Jenkins: An Evaluation of WRF-Sfire With Field
Observations From the FireFlux Experiment
10:00 Jan Mandel: Recent developments in WRF-SFIRE
10:30 Coffee break
11:00 Adam Kochanski: Forecasting of smoke and wildfire
emissions using WRF-Sfire
11:30 Craig Clements, Wildland fire experiments at the field scale
12:30 – 14:00 Lunch
14:00 Céline Mari: Fire and air pollution: from local to global scale
14:30 Ronan Paugam: FRP Product Simulation Tool”
15:00 Eric Bertrand Présentation d'une méthode d'expertise du
danger météo d'incendies utilisée de manière opérationnelle
en zone sud.
15:30 Coffee break
16:00 Jean-Baptiste Filippi, Combustion to the atmosphere,
overview of the tools and methods developed within the IDEA
project.
16:30 Mark Finney, Decision Support Systems for Wildfire
Operations and Planning in the U.S.
17:00 Andrew Sullivan, Operational tools of Wildfire risk estimation
and mitigation in Australia.
17:30 – 19:00 Closing discussions with fire crews.
20:00 – 21:30 Closing conference dinner in Cargese village
Saturday, may 18 –
9:00 -10:00 IDEA internal meeting.
9:00 – 12 :00 Shuttles leaves for airport.