Prediction of leakage flow rate from upward water jets bursting at the ground

Detalhes bibliográficos
Autor(a) principal: Oliveira,Luísa Ciríaco Silva de
Data de Publicação: 2022
Outros Autores: Lima Neto,Iran Eduardo
Tipo de documento: Relatório
Idioma: eng
Título da fonte: RBRH (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2318-03312022000100401
Resumo: Abstract This paper presents experimental studies to explore the behavior of upward water jets in granular beds. The test conditions included both the cavity and chimney regime. Combining our results with data available in the literature, it was possible to fit a linear relationship to describe the dimensionless upward water velocity at the bed surface (u/U) as a function of kFr, in which Fr is the Froude number and k is a fitting parameter that was linearly related with the medium particle diameter d. A threshold condition (kFr = 1) was also proposed to predict the onset of the chimney regime, which was consistent with published data. Finally, a simple equation based on d, D and H was derived to predict the real-scale leakage flow rate Q from upward water jets bursting at the ground. The results obtained will potentially help water utilities estimate the water loss from underground pipelines.
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spelling Prediction of leakage flow rate from upward water jets bursting at the groundExperimentsFluidizationPipe leakageWater distribution systemAbstract This paper presents experimental studies to explore the behavior of upward water jets in granular beds. The test conditions included both the cavity and chimney regime. Combining our results with data available in the literature, it was possible to fit a linear relationship to describe the dimensionless upward water velocity at the bed surface (u/U) as a function of kFr, in which Fr is the Froude number and k is a fitting parameter that was linearly related with the medium particle diameter d. A threshold condition (kFr = 1) was also proposed to predict the onset of the chimney regime, which was consistent with published data. Finally, a simple equation based on d, D and H was derived to predict the real-scale leakage flow rate Q from upward water jets bursting at the ground. The results obtained will potentially help water utilities estimate the water loss from underground pipelines.Associação Brasileira de Recursos Hídricos2022-01-01info:eu-repo/semantics/reportinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2318-03312022000100401RBRH v.27 2022reponame:RBRH (Online)instname:Associação Brasileira de Recursos Hídricos (ABRH)instacron:ABRH10.1590/2318-0331.272220210139info:eu-repo/semantics/openAccessOliveira,Luísa Ciríaco Silva deLima Neto,Iran Eduardoeng2022-04-06T00:00:00Zoai:scielo:S2318-03312022000100401Revistahttps://www.scielo.br/j/rbrh/https://old.scielo.br/oai/scielo-oai.php||rbrh@abrh.org.br2318-03311414-381Xopendoar:2022-04-06T00:00RBRH (Online) - Associação Brasileira de Recursos Hídricos (ABRH)false
dc.title.none.fl_str_mv Prediction of leakage flow rate from upward water jets bursting at the ground
title Prediction of leakage flow rate from upward water jets bursting at the ground
spellingShingle Prediction of leakage flow rate from upward water jets bursting at the ground
Oliveira,Luísa Ciríaco Silva de
Experiments
Fluidization
Pipe leakage
Water distribution system
title_short Prediction of leakage flow rate from upward water jets bursting at the ground
title_full Prediction of leakage flow rate from upward water jets bursting at the ground
title_fullStr Prediction of leakage flow rate from upward water jets bursting at the ground
title_full_unstemmed Prediction of leakage flow rate from upward water jets bursting at the ground
title_sort Prediction of leakage flow rate from upward water jets bursting at the ground
author Oliveira,Luísa Ciríaco Silva de
author_facet Oliveira,Luísa Ciríaco Silva de
Lima Neto,Iran Eduardo
author_role author
author2 Lima Neto,Iran Eduardo
author2_role author
dc.contributor.author.fl_str_mv Oliveira,Luísa Ciríaco Silva de
Lima Neto,Iran Eduardo
dc.subject.por.fl_str_mv Experiments
Fluidization
Pipe leakage
Water distribution system
topic Experiments
Fluidization
Pipe leakage
Water distribution system
description Abstract This paper presents experimental studies to explore the behavior of upward water jets in granular beds. The test conditions included both the cavity and chimney regime. Combining our results with data available in the literature, it was possible to fit a linear relationship to describe the dimensionless upward water velocity at the bed surface (u/U) as a function of kFr, in which Fr is the Froude number and k is a fitting parameter that was linearly related with the medium particle diameter d. A threshold condition (kFr = 1) was also proposed to predict the onset of the chimney regime, which was consistent with published data. Finally, a simple equation based on d, D and H was derived to predict the real-scale leakage flow rate Q from upward water jets bursting at the ground. The results obtained will potentially help water utilities estimate the water loss from underground pipelines.
publishDate 2022
dc.date.none.fl_str_mv 2022-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/report
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format report
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2318-03312022000100401
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2318-03312022000100401
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/2318-0331.272220210139
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Associação Brasileira de Recursos Hídricos
publisher.none.fl_str_mv Associação Brasileira de Recursos Hídricos
dc.source.none.fl_str_mv RBRH v.27 2022
reponame:RBRH (Online)
instname:Associação Brasileira de Recursos Hídricos (ABRH)
instacron:ABRH
instname_str Associação Brasileira de Recursos Hídricos (ABRH)
instacron_str ABRH
institution ABRH
reponame_str RBRH (Online)
collection RBRH (Online)
repository.name.fl_str_mv RBRH (Online) - Associação Brasileira de Recursos Hídricos (ABRH)
repository.mail.fl_str_mv ||rbrh@abrh.org.br
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