Please use this identifier to cite or link to this item:
https://hdl.handle.net/10316.2/44681
Title: | Simulations of surface fire propagating under a canopy: flame angle and intermittency | Authors: | Sutherland, Duncan Philip, Jimmy Ooi, Andrew Moinuddin, Khalid |
Keywords: | Physics-based fire simulation;surface fire;tree canopies;flame intermittency;non-quasisteady fires | Issue Date: | 2018 | Publisher: | Imprensa da Universidade de Coimbra | Journal: | http://hdl.handle.net/10316.2/44517 | Abstract: | We conduct physics-based simulations of a wind driven surface fire entering, propagating through, and leaving a region of aerodynamic drag. This is an idealised model of a real-world grassfire propagating through a short canopy such as a stand of trees. The study is motivated by the need to understand how fires entering forested regions adjust to the lower wind speed inside the forest. This will lead to more informed operational modelling practices and predictions of fire spread. In these simulations the driving open (10 m) wind speed is varied from 1 ms-1 to 10 ms-1. For lower driving wind speeds the rate-of-spread of the fire is largely unaffected by the canopy, however, for the higher driving wind speeds the fire appears to transition from a wind-driven mode, characterised by a low flame angle to a buoyancy-driven mode, characterised by a nearly vertical flame. | URI: | https://hdl.handle.net/10316.2/44681 | ISBN: | 978-989-26-16-506 (PDF) | DOI: | 10.14195/978-989-26-16-506_164 | Rights: | open access |
Appears in Collections: | Advances in forest fire research 2018 |
Files in This Item:
File | Description | Size | Format | |
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simulations_of_surface_fire_propagating.pdf | 1.03 MB | Adobe PDF |
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