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: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da Universidade Federal do Ceará (UFC)
Texto Completo: http://www.repositorio.ufc.br/handle/riufc/67369
Resumo: 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.
id UFC-7_bfef1a654e4d2f3d69bc8210b2d0cf9e
oai_identifier_str oai:repositorio.ufc.br:riufc/67369
network_acronym_str UFC-7
network_name_str Repositório Institucional da Universidade Federal do Ceará (UFC)
repository_id_str
spelling Prediction of leakage flow rate from upward water jets bursting at the groundPredição da vazão perdida por jatos de água ascendentes aflorantes no soloExperimentsFluidizationPipe leakageWater distribution systemThis 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.O presente artigo apresenta estudos experimentais com o objetivo de analisar o comportamento de jatos d'água ascendentes em leitos granulares. As condições de teste incluíram tanto o regime da cavidade, quanto o regime de chaminé. Combinando os resultados obtidos com dados disponíveis na literatura, foi possível ajustar uma relação linear para descrever a velocidade ascendente adimensional da água na superfície do leito granular (u/U) em função de kFr, em que Fr é o número de Froude e k é um parâmetro de ajuste linearmente dependente do diâmetro médio da partícula, d. Foi proposta uma condição limite (kFr = 1) para prever o início do regime de chaminé, que se apresenta em concordância com dados publicados. Por fim, uma equação simples baseada em d, D e H foi derivada para prever a taxa de vazamento em escala real, Q, de jatos de água ascendentes que atingem o solo. Os resultados obtidos podem ajudar as concessionárias de água a estimar a perda de água em tubulações enterradas.Revista Brasileira de Recursos Hídricos2022-07-21T19:25:51Z2022-07-21T19:25:51Z2022info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfLIMA NETO, I. E.; OLIVEIRA, L. C. S. Prediction of leakage flow rate from upward water jets bursting at the ground. Revista Brasileira de Recursos Hídricos, vol. 27, 2022. DOI: 10.1590/2318-0331.2722202101392318-0331http://www.repositorio.ufc.br/handle/riufc/67369Oliveira, Luísa Ciríaco Silva deLima Neto, Iran Eduardoinfo:eu-repo/semantics/openAccessengreponame:Repositório Institucional da Universidade Federal do Ceará (UFC)instname:Universidade Federal do Ceará (UFC)instacron:UFC2023-12-06T17:49:48Zoai:repositorio.ufc.br:riufc/67369Repositório InstitucionalPUBhttp://www.repositorio.ufc.br/ri-oai/requestbu@ufc.br || repositorio@ufc.bropendoar:2024-09-11T18:40:24.619421Repositório Institucional da Universidade Federal do Ceará (UFC) - Universidade Federal do Ceará (UFC)false
dc.title.none.fl_str_mv Prediction of leakage flow rate from upward water jets bursting at the ground
Predição da vazão perdida por jatos de água ascendentes aflorantes no solo
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 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 2022-07-21T19:25:51Z
2022-07-21T19:25:51Z
2022
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 LIMA NETO, I. E.; OLIVEIRA, L. C. S. Prediction of leakage flow rate from upward water jets bursting at the ground. Revista Brasileira de Recursos Hídricos, vol. 27, 2022. DOI: 10.1590/2318-0331.272220210139
2318-0331
http://www.repositorio.ufc.br/handle/riufc/67369
identifier_str_mv LIMA NETO, I. E.; OLIVEIRA, L. C. S. Prediction of leakage flow rate from upward water jets bursting at the ground. Revista Brasileira de Recursos Hídricos, vol. 27, 2022. DOI: 10.1590/2318-0331.272220210139
2318-0331
url http://www.repositorio.ufc.br/handle/riufc/67369
dc.language.iso.fl_str_mv eng
language eng
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.publisher.none.fl_str_mv Revista Brasileira de Recursos Hídricos
publisher.none.fl_str_mv Revista Brasileira de Recursos Hídricos
dc.source.none.fl_str_mv reponame:Repositório Institucional da Universidade Federal do Ceará (UFC)
instname:Universidade Federal do Ceará (UFC)
instacron:UFC
instname_str Universidade Federal do Ceará (UFC)
instacron_str UFC
institution UFC
reponame_str Repositório Institucional da Universidade Federal do Ceará (UFC)
collection Repositório Institucional da Universidade Federal do Ceará (UFC)
repository.name.fl_str_mv Repositório Institucional da Universidade Federal do Ceará (UFC) - Universidade Federal do Ceará (UFC)
repository.mail.fl_str_mv bu@ufc.br || repositorio@ufc.br
_version_ 1813028900967546880

Registros relacionados