Utilize este identificador para referenciar este registo: https://hdl.handle.net/10316/95985
Título: Analysis of the wind flow and fire spread dynamics over a sloped–ridgeline hill
Autor: Abouali, Abdelrahman 
Viegas, Domingos Xavier 
Raposo, Jorge Rafael 
Palavras-chave: Fire channelling; Fire-induced wind; Fire–terrain–wind interactions; Lateral fire spread; Sloped–ridgeline hill
Data: 2021
Editora: Elsevier
Projeto: PCIF/GFC/0109/2017/FIRESTORM - Weather and Behaviour of Fire Storms 
PCIF/SSI/0151/2018/IMFIRE - Intelligent Management of Wildfires 
Título da revista, periódico, livro ou evento: Combustion and Flame
Volume: 234
Resumo: This paper presents results from a computational and laboratory investigation of wind flow and fire spread over an isolated sloped-ridgeline laboratory-scale hill under various slopes with the wind blowing perpendicularly to the ridgeline. The results show two situations of unexpected or unusual fire behaviour; one is a lateral spread of the fire front over the windward face into a down-ridge direction resulting from a strong near-surface flow component parallel to the ridgeline. The other behaviour is a lateral enlargement of the fire front near the ridgeline over the leeward face in an up-ridge direction resulting from a flow parallel to the ridgeline. Comparison with reference fire spread rates and wind flow observations highlight the importance of the interaction between terrain-modified flow mechanisms and the fire in which they result in accelerated flows that drive the indicated unexpected behaviour. © 2021 The Author(s)
URI: https://hdl.handle.net/10316/95985
ISSN: 00102180
DOI: 10.1016/j.combustflame.2021.111724
Direitos: openAccess
Aparece nas coleções:I&D ADAI - Artigos em Revistas Internacionais

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