Numerical simulation of surface forest fire in Brazilian Amazon

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dc.contributor.authorBufacchi, Paulo
dc.contributor.authorKrieger, Guenther C.
dc.contributor.authorMell, William
dc.contributor.authorAlvarado, Ernesto
dc.contributor.authorSantos, José Carlos
dc.contributor.authorCarvalho, João Andrade [UNESP]
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionPacific Wildland Fire Sciences Lab
dc.contributor.institutionUniversity of Washington
dc.contributor.institutionInstituto Nacional de Pesquisas Espaciais-INPE
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2018-12-11T16:40:08Z
dc.date.available2018-12-11T16:40:08Z
dc.date.issued2016-01-01
dc.description.abstractThis paper investigates fire spread through surface fuels of the Brazilian Amazon by using a three-dimensional, fully transient, physics-based computer simulation approach. Computer simulations are obtained through the solution to governing equations of fluid dynamics, combustion, heat transfer and thermal degradation of the vegetative fuel. Surface fuel fires composed mostly of dead leaves and twigs were numerically simulated and the calculated rate of spread was compared to findings from field observations. The importance of air humidity, vegetation temperature, moisture content, surface to volume ratio and bulk density was evaluated through the variation of each one individually in numerical simulation runs. Conclusions show that in the range of parameter variation considered, the most important parameters are the vegetation moisture, surface area to volume ratio, and bulk density. The vegetation initial temperature and air humidity, in the range of variation studied, did not influence the fire rate of spread. The numerical simulations also showed that the radiation process is very important and directly affects the fire rate of spread. Convection is less important because of the absence of external wind. The model is able to capture the main effects of a surface forest fire typical of the Amazon, and can be used as a numerical tool for studying such fires.en
dc.description.affiliationDepartment of Mechanical Engineering Escola Politécnica da Universidade de São Paulo Cidade Universitária, Rua Dr.Thirso Martins, 200/62
dc.description.affiliationU.S. Forest Service Pacific Northwest Research Station Pacific Wildland Fire Sciences Lab
dc.description.affiliationPacific Wildland Fire Sciences Laboratory School of Forest Resources University of Washington
dc.description.affiliationInstituto Nacional de Pesquisas Espaciais-INPE
dc.description.affiliationUniversidade Estadual Paulista - UNESP
dc.description.affiliationUnespUniversidade Estadual Paulista - UNESP
dc.format.extent44-56
dc.identifierhttp://dx.doi.org/10.1016/j.firesaf.2015.11.014
dc.identifier.citationFire Safety Journal, v. 79, p. 44-56.
dc.identifier.doi10.1016/j.firesaf.2015.11.014
dc.identifier.file2-s2.0-84949422767.pdf
dc.identifier.issn0379-7112
dc.identifier.scopus2-s2.0-84949422767
dc.identifier.urihttp://hdl.handle.net/11449/168185
dc.language.isoeng
dc.relation.ispartofFire Safety Journal
dc.relation.ispartofsjr0,789
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectBrazilian Amazon
dc.subjectNumerical simulation
dc.subjectRate of spread
dc.subjectSurface fire
dc.subjectTurbulent combustion
dc.titleNumerical simulation of surface forest fire in Brazilian Amazonen
dc.typeArtigo

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