Mathematical modelling of shallow flows: closure models drawn from grain-scale mechanics of sediment transport and flow hydrodynamics

Detalhes bibliográficos
Autor(a) principal: Ferreira, RML
Data de Publicação: 2009
Outros Autores: Franca, MJ, Leal, JGAB, Cardoso, António H.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10362/4604
Resumo: Canadian Journal of Civil Engineering 36(10) 1605–16
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spelling Mathematical modelling of shallow flows: closure models drawn from grain-scale mechanics of sediment transport and flow hydrodynamicsSediment loadSediment concentrationTurbulence modellingDebris flowRiver morphologyConceptual modellingMathematical modelCanadian Journal of Civil Engineering 36(10) 1605–16Mathematical modelling of river processes is, nowadays, a key element in river engineering and planning. River modelling tools should rest on conceptual models drawn from mechanics of sediment transport, river mechanics, and river hydrodynamics. The objectives of the present work are (i) to describe conceptual models of sediment transport, deduced from grain-scale mechanics of sediment transport and turbulent flow hydrodynamics, and (ii) to present solutions to specific river morphology problems. The conceptual models described are applicable to the morphologic evolution of rivers subjected to the transport of poorly sorted sediment mixtures at low shear stresses and to geomorphic flows featuring intense sediment transport at high shear stresses. In common, these applications share the fact that sediment transport and flow resistance depend, essentially, on grain-scale phenomena. The idealized flow structures are presented and discussed. Numerical solutions for equilibrium and nonequilibrium sediment transport are presented and compared with laboratory and field data.RUNFerreira, RMLFranca, MJLeal, JGABCardoso, António H.2012-02-24T23:02:19Z2009-01-01T00:00:00Z2009-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10362/4604eng1208-6029info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-10T15:26:40ZPortal AgregadorONG
dc.title.none.fl_str_mv Mathematical modelling of shallow flows: closure models drawn from grain-scale mechanics of sediment transport and flow hydrodynamics
title Mathematical modelling of shallow flows: closure models drawn from grain-scale mechanics of sediment transport and flow hydrodynamics
spellingShingle Mathematical modelling of shallow flows: closure models drawn from grain-scale mechanics of sediment transport and flow hydrodynamics
Ferreira, RML
Sediment load
Sediment concentration
Turbulence modelling
Debris flow
River morphology
Conceptual modelling
Mathematical model
title_short Mathematical modelling of shallow flows: closure models drawn from grain-scale mechanics of sediment transport and flow hydrodynamics
title_full Mathematical modelling of shallow flows: closure models drawn from grain-scale mechanics of sediment transport and flow hydrodynamics
title_fullStr Mathematical modelling of shallow flows: closure models drawn from grain-scale mechanics of sediment transport and flow hydrodynamics
title_full_unstemmed Mathematical modelling of shallow flows: closure models drawn from grain-scale mechanics of sediment transport and flow hydrodynamics
title_sort Mathematical modelling of shallow flows: closure models drawn from grain-scale mechanics of sediment transport and flow hydrodynamics
author Ferreira, RML
author_facet Ferreira, RML
Franca, MJ
Leal, JGAB
Cardoso, António H.
author_role author
author2 Franca, MJ
Leal, JGAB
Cardoso, António H.
author2_role author
author
author
dc.contributor.none.fl_str_mv RUN
dc.contributor.author.fl_str_mv Ferreira, RML
Franca, MJ
Leal, JGAB
Cardoso, António H.
dc.subject.por.fl_str_mv Sediment load
Sediment concentration
Turbulence modelling
Debris flow
River morphology
Conceptual modelling
Mathematical model
topic Sediment load
Sediment concentration
Turbulence modelling
Debris flow
River morphology
Conceptual modelling
Mathematical model
description Canadian Journal of Civil Engineering 36(10) 1605–16
publishDate 2009
dc.date.none.fl_str_mv 2009-01-01T00:00:00Z
2009-01-01
2012-02-24T23:02:19Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10362/4604
url http://hdl.handle.net/10362/4604
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 1208-6029
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
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instacron_str RCAAP
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collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv
repository.mail.fl_str_mv
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