Methodology for Determining the Emitter Local Head Loss in Drip Irrigation Systems

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorFlores, José Henrique Nunes-
Autor(es): dc.creatorFaria, Lessandro Coll-
Autor(es): dc.creatorRettore Neto, Osvaldo-
Autor(es): dc.creatorDiotto, Adriano Valentin-
Autor(es): dc.creatorColombo, Alberto-
Data de aceite: dc.date.accessioned2026-02-09T11:21:29Z-
Data de disponibilização: dc.date.available2026-02-09T11:21:29Z-
Data de envio: dc.date.issued2021-05-14-
Data de envio: dc.date.issued2021-05-14-
Data de envio: dc.date.issued2020-10-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/46277-
Fonte completa do material: dc.identifierhttps://doi.org/10.1061/(ASCE)IR.1943-4774.0001516-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1139177-
Descrição: dc.descriptionPrecise estimation of local head loss (hl) remains a challenge for the hydraulic design of drip irrigation. This study develops a robust protocol for estimating the emitter hl based on the Borda-Carnot principle. The method requires cross-sectional flow area measurements with and without emitter obstruction and a contraction coefficient, which is determined by the empirical relationship of the obstruction ratio. For comparison purposes, cross-sectional flow areas were also measured with a profile projector, which resulted in absolute deviations lower than 2.6%. Observed and predicted single-emitter hl deviation values were consistent with previous studies; the three examined emitting pipe types had deviation values of −6.67%, 21.6%, and 1.07%. Thus, the proposed methodology for estimating the cross-sectional area can be applied without compromising hl estimates using a single flat inline emitter operated by the proposed semiempirical model.-
Idioma: dc.languageen-
Publicador: dc.publisherAmerican Society of Civil Engineers-
Direitos: dc.rightsrestrictAccess-
???dc.source???: dc.sourceJournal of Irrigation and Drainage Engineering-
Palavras-chave: dc.subjectCrossflow-
Palavras-chave: dc.subjectHead loss (fluid mechanics)-
Palavras-chave: dc.subjectHead (fluid mechanics)-
Palavras-chave: dc.subjectTrickle irrigation-
Palavras-chave: dc.subjectIrrigação por gotejamento-
Palavras-chave: dc.subjectFluxo cruzado-
Palavras-chave: dc.subjectPerda de carga (mecânica dos fluidos)-
Palavras-chave: dc.subjectCarga (mecânica dos fluidos)-
Título: dc.titleMethodology for Determining the Emitter Local Head Loss in Drip Irrigation Systems-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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