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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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Ficheiro | Descrição | Tamanho | Formato | |
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1-s2.0-S0010218021004673-main.pdf | 5.6 MB | Adobe PDF | Ver/Abrir |
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