A Study of Two High Intensity Fires across Corsican Shrubland
This paper reports two experimental fires conducted at field-scale in Corsica, across a particular mountain shrubland. The orientation of the experimental plots was chosen in such a way that the wind was aligned along the main slope direction in order to obtain a high intensity fire. The first objec...
| Main Authors: | , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-02-01
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| Series: | Atmosphere |
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| Online Access: | https://www.mdpi.com/2073-4433/14/3/473 |
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| author | Jacky Fayad Frédéric Morandini Gilbert Accary François-Joseph Chatelon Clément Wandon Antoine Burglin Lucile Rossi Thierry Marcelli Dominique Cancellieri Valérie Cancellieri Dominique Morvan Sofiane Meradji Antoine Pieri Gilles Planelles René Costantini Patrice Briot Jean-Louis Rossi |
| author_facet | Jacky Fayad Frédéric Morandini Gilbert Accary François-Joseph Chatelon Clément Wandon Antoine Burglin Lucile Rossi Thierry Marcelli Dominique Cancellieri Valérie Cancellieri Dominique Morvan Sofiane Meradji Antoine Pieri Gilles Planelles René Costantini Patrice Briot Jean-Louis Rossi |
| author_sort | Jacky Fayad |
| collection | DOAJ |
| description | This paper reports two experimental fires conducted at field-scale in Corsica, across a particular mountain shrubland. The orientation of the experimental plots was chosen in such a way that the wind was aligned along the main slope direction in order to obtain a high intensity fire. The first objective was to study the high intensity fire behavior by evaluating the propagation conditions related to its speed and intensity, as well as the geometry of the fire front and its impact on different targets. Therefore, an experimental protocol was designed to determine the properties of the fire spread using UAV cameras and its impact using heat flux gauges. Another objective was to study these experiments numerically using a fully physical fire model, namely FireStar3D. Numerical results concerning the fire dynamics, particularly the ROS, were also compared to other predictions of the FireStar2D model. The comparison with experimental measurements showed the robustness of the 3D approach with a maximum difference of 5.2% for the head fire ROS. The fire intensities obtained revealed that these experiments are representative of high intensity fires, which are very difficult to control in the case of real wildfires. Other parameters investigated numerically (flame geometry and heat fluxes) were also in fairly good agreement with the experimental measurements and confirm the capacity of FireStar3D to predict surface fires of high intensity. |
| first_indexed | 2024-03-11T06:56:06Z |
| format | Article |
| id | doaj.art-04b299563a88464da23e86089b298fa2 |
| institution | Directory Open Access Journal |
| issn | 2073-4433 |
| language | English |
| last_indexed | 2024-03-11T06:56:06Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Atmosphere |
| spelling | doaj.art-04b299563a88464da23e86089b298fa22023-11-17T09:32:12ZengMDPI AGAtmosphere2073-44332023-02-0114347310.3390/atmos14030473A Study of Two High Intensity Fires across Corsican ShrublandJacky Fayad0Frédéric Morandini1Gilbert Accary2François-Joseph Chatelon3Clément Wandon4Antoine Burglin5Lucile Rossi6Thierry Marcelli7Dominique Cancellieri8Valérie Cancellieri9Dominique Morvan10Sofiane Meradji11Antoine Pieri12Gilles Planelles13René Costantini14Patrice Briot15Jean-Louis Rossi16Le Laboratoire Sciences Pour l’Environnement (UMR CNRS SPE 6134), Université de Corse, 20250 Corte, FranceLe Laboratoire Sciences Pour l’Environnement (UMR CNRS SPE 6134), Université de Corse, 20250 Corte, FranceScientific Research Center in Engineering, Lebanese University, Museum Square, Beirut 1106, LebanonLe Laboratoire Sciences Pour l’Environnement (UMR CNRS SPE 6134), Université de Corse, 20250 Corte, FranceLe Laboratoire Sciences Pour l’Environnement (UMR CNRS SPE 6134), Université de Corse, 20250 Corte, FranceLe Laboratoire Sciences Pour l’Environnement (UMR CNRS SPE 6134), Université de Corse, 20250 Corte, FranceLe Laboratoire Sciences Pour l’Environnement (UMR CNRS SPE 6134), Université de Corse, 20250 Corte, FranceLe Laboratoire Sciences Pour l’Environnement (UMR CNRS SPE 6134), Université de Corse, 20250 Corte, FranceLe Laboratoire Sciences Pour l’Environnement (UMR CNRS SPE 6134), Université de Corse, 20250 Corte, FranceLe Laboratoire Sciences Pour l’Environnement (UMR CNRS SPE 6134), Université de Corse, 20250 Corte, FranceM2P2, Centrale Marseille, CNRS, Aix-Marseille Université, 13451 Marseille, FranceIMATH Laboratory, EA 2134, Toulon University, 83160 Toulon, FranceLe Laboratoire Sciences Pour l’Environnement (UMR CNRS SPE 6134), Université de Corse, 20250 Corte, FranceOffice National des Forêt–Corse-Unité Production Travaux-Responsable UP, 20000 Ajaccio, FranceSIS2B, Centre Administratif du Fango, 20200 Bastia, FranceService Régional Ingénierie DFCI FORSAP de la Collectivité de Corse, 20187 Ajaccio, FranceLe Laboratoire Sciences Pour l’Environnement (UMR CNRS SPE 6134), Université de Corse, 20250 Corte, FranceThis paper reports two experimental fires conducted at field-scale in Corsica, across a particular mountain shrubland. The orientation of the experimental plots was chosen in such a way that the wind was aligned along the main slope direction in order to obtain a high intensity fire. The first objective was to study the high intensity fire behavior by evaluating the propagation conditions related to its speed and intensity, as well as the geometry of the fire front and its impact on different targets. Therefore, an experimental protocol was designed to determine the properties of the fire spread using UAV cameras and its impact using heat flux gauges. Another objective was to study these experiments numerically using a fully physical fire model, namely FireStar3D. Numerical results concerning the fire dynamics, particularly the ROS, were also compared to other predictions of the FireStar2D model. The comparison with experimental measurements showed the robustness of the 3D approach with a maximum difference of 5.2% for the head fire ROS. The fire intensities obtained revealed that these experiments are representative of high intensity fires, which are very difficult to control in the case of real wildfires. Other parameters investigated numerically (flame geometry and heat fluxes) were also in fairly good agreement with the experimental measurements and confirm the capacity of FireStar3D to predict surface fires of high intensity.https://www.mdpi.com/2073-4433/14/3/473field experimentfire behaviorhigh intensity firephysical fire model |
| spellingShingle | Jacky Fayad Frédéric Morandini Gilbert Accary François-Joseph Chatelon Clément Wandon Antoine Burglin Lucile Rossi Thierry Marcelli Dominique Cancellieri Valérie Cancellieri Dominique Morvan Sofiane Meradji Antoine Pieri Gilles Planelles René Costantini Patrice Briot Jean-Louis Rossi A Study of Two High Intensity Fires across Corsican Shrubland Atmosphere field experiment fire behavior high intensity fire physical fire model |
| title | A Study of Two High Intensity Fires across Corsican Shrubland |
| title_full | A Study of Two High Intensity Fires across Corsican Shrubland |
| title_fullStr | A Study of Two High Intensity Fires across Corsican Shrubland |
| title_full_unstemmed | A Study of Two High Intensity Fires across Corsican Shrubland |
| title_short | A Study of Two High Intensity Fires across Corsican Shrubland |
| title_sort | study of two high intensity fires across corsican shrubland |
| topic | field experiment fire behavior high intensity fire physical fire model |
| url | https://www.mdpi.com/2073-4433/14/3/473 |
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