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http://hdl.handle.net/10773/28140
Título: | Numerical modelling of the aerial drop of firefighting agents by fixed-wing aircraft. Part II: model validation |
Autor: | Amorim, J. H. |
Palavras-chave: | Drop effectiveness Drop testing Model evaluation |
Data: | 2011 |
Editora: | CSIRO Publishing |
Resumo: | The validation of the Aerial Drop Model consisted of the comparison of computed ground patterns with experimentaldata fromaset ofreal-scale droptestsusingwater anda widerange offire retardant viscosities.Results were analysed in terms of pattern length and area. A total of 78% of the computed line lengths per coverage level were within a 10% error, with an average normalised mean squared error of 0.01 and a Pearson correlation coefficient above 0.9. In all cases,nearly90%oftheresultswerewithinafactorof2ofobservations.Theaccuracyofthesimulationsshowednostrong relation with the viscosity, although better results were obtained in the range from 700 to 1100cP. In general, the model produced a good representation of the spatial distribution of the agent for various coverage levels and its accuracy was, in fact,within thestatistical uncertaintyofthecup-and-gridsampling method.Thegoodperformanceobtaineddemonstrates that this tool, for the tested range of drop conditions, fulfils the requirements for use in the optimisation of firefighting operations, as a complementary method to real-scale drop testing, and in firefighter training activities. |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/28140 |
DOI: | 10.1071/WF09123 |
ISSN: | 1049-8001 |
Aparece nas coleções: | CESAM - Artigos DAO - Artigos |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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Amorim - 2011 - Numerical modelling of the aerial drop of firefigh.pdf | 843.96 kB | Adobe PDF |
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