Numerical Study of the Effect of the Ignition Procedure on the Front of a Surface Fire from a 3D Numerical Model
In instrumented prescribed fires, the ignition procedure requires much attention. In this paper, we investigate the effects of two ignition procedures on the fire head using a 3D numerical model. The first procedure is to ignite the fire from the edges of the fire line towards the centre of the line...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-01-01
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| Series: | Fire |
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| Online Access: | https://www.mdpi.com/2571-6255/6/1/15 |
| _version_ | 1797442755977281536 |
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| author | Akahoua D. V. Brou |
| author_facet | Akahoua D. V. Brou |
| author_sort | Akahoua D. V. Brou |
| collection | DOAJ |
| description | In instrumented prescribed fires, the ignition procedure requires much attention. In this paper, we investigate the effects of two ignition procedures on the fire head using a 3D numerical model. The first procedure is to ignite the fire from the edges of the fire line towards the centre of the line. The second procedure consists of igniting the fire from the centre of the fire line to the edges of the line. The 3D numerical model used is based on the modelling of the fuel layer from Lagrangian particles, and the fire propagation is based on a two-phase model. The model was tested on an experimental fire in a wheat field in southern Australia. The model predicted the experimental fire front well. Analysis of the impact of the ignition procedure on the fire head showed that the quasi-steady-state rate of fire spread was the same for both procedures. However, before the quasi-stationary state, the front of the first procedure spread faster than that of the second procedure. The fire front in the first procedure was wider than in the second procedure. It was also found that the length of the head fire in the first procedure remained the same as that of the ignition line. In the second procedure, the length of the head fire was one-third of that of the ignition line. |
| first_indexed | 2024-03-09T12:46:36Z |
| format | Article |
| id | doaj.art-23e32e5be9024f92b9424209814aec32 |
| institution | Directory Open Access Journal |
| issn | 2571-6255 |
| language | English |
| last_indexed | 2024-03-09T12:46:36Z |
| publishDate | 2023-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Fire |
| spelling | doaj.art-23e32e5be9024f92b9424209814aec322023-11-30T22:11:33ZengMDPI AGFire2571-62552023-01-01611510.3390/fire6010015Numerical Study of the Effect of the Ignition Procedure on the Front of a Surface Fire from a 3D Numerical ModelAkahoua D. V. Brou0Laboratoire des Sciences et Technologies de l’Environnement, Département Mathématiques-Phsique-Chimie-Informatique, UFR Environnement, Université Jean Lorougnon Guédé de Daloa, Daloa BP 150, Côte d’IvoireIn instrumented prescribed fires, the ignition procedure requires much attention. In this paper, we investigate the effects of two ignition procedures on the fire head using a 3D numerical model. The first procedure is to ignite the fire from the edges of the fire line towards the centre of the line. The second procedure consists of igniting the fire from the centre of the fire line to the edges of the line. The 3D numerical model used is based on the modelling of the fuel layer from Lagrangian particles, and the fire propagation is based on a two-phase model. The model was tested on an experimental fire in a wheat field in southern Australia. The model predicted the experimental fire front well. Analysis of the impact of the ignition procedure on the fire head showed that the quasi-steady-state rate of fire spread was the same for both procedures. However, before the quasi-stationary state, the front of the first procedure spread faster than that of the second procedure. The fire front in the first procedure was wider than in the second procedure. It was also found that the length of the head fire in the first procedure remained the same as that of the ignition line. In the second procedure, the length of the head fire was one-third of that of the ignition line.https://www.mdpi.com/2571-6255/6/1/153D numerical modelLagrangian particlesignition procedurerate of spreadvegetation fire front |
| spellingShingle | Akahoua D. V. Brou Numerical Study of the Effect of the Ignition Procedure on the Front of a Surface Fire from a 3D Numerical Model Fire 3D numerical model Lagrangian particles ignition procedure rate of spread vegetation fire front |
| title | Numerical Study of the Effect of the Ignition Procedure on the Front of a Surface Fire from a 3D Numerical Model |
| title_full | Numerical Study of the Effect of the Ignition Procedure on the Front of a Surface Fire from a 3D Numerical Model |
| title_fullStr | Numerical Study of the Effect of the Ignition Procedure on the Front of a Surface Fire from a 3D Numerical Model |
| title_full_unstemmed | Numerical Study of the Effect of the Ignition Procedure on the Front of a Surface Fire from a 3D Numerical Model |
| title_short | Numerical Study of the Effect of the Ignition Procedure on the Front of a Surface Fire from a 3D Numerical Model |
| title_sort | numerical study of the effect of the ignition procedure on the front of a surface fire from a 3d numerical model |
| topic | 3D numerical model Lagrangian particles ignition procedure rate of spread vegetation fire front |
| url | https://www.mdpi.com/2571-6255/6/1/15 |
| work_keys_str_mv | AT akahouadvbrou numericalstudyoftheeffectoftheignitionprocedureonthefrontofasurfacefirefroma3dnumericalmodel |