Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/46277
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dc.creatorFlores, José Henrique Nunes-
dc.creatorFaria, Lessandro Coll-
dc.creatorRettore Neto, Osvaldo-
dc.creatorDiotto, Adriano Valentin-
dc.creatorColombo, Alberto-
dc.date.accessioned2021-05-14T18:55:52Z-
dc.date.available2021-05-14T18:55:52Z-
dc.date.issued2020-10-
dc.identifier.citationFLORES, J. H. N. et al. Methodology for Determining the Emitter Local Head Loss in Drip Irrigation Systems. Journal of Irrigation and Drainage Engineering, Reston, v. 147, n. 1, Jan. 2021. DOI: https://doi.org/10.1061/(ASCE)IR.1943-4774.0001516.pt_BR
dc.identifier.urihttps://doi.org/10.1061/(ASCE)IR.1943-4774.0001516pt_BR
dc.identifier.urihttp://repositorio.ufla.br/jspui/handle/1/46277-
dc.description.abstractPrecise 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.pt_BR
dc.languageen_USpt_BR
dc.publisherAmerican Society of Civil Engineerspt_BR
dc.rightsrestrictAccesspt_BR
dc.sourceJournal of Irrigation and Drainage Engineeringpt_BR
dc.subjectCrossflowpt_BR
dc.subjectHead loss (fluid mechanics)pt_BR
dc.subjectHead (fluid mechanics)pt_BR
dc.subjectTrickle irrigationpt_BR
dc.subjectIrrigação por gotejamentopt_BR
dc.subjectFluxo cruzadopt_BR
dc.subjectPerda de carga (mecânica dos fluidos)pt_BR
dc.subjectCarga (mecânica dos fluidos)pt_BR
dc.titleMethodology for Determining the Emitter Local Head Loss in Drip Irrigation Systemspt_BR
dc.typeArtigopt_BR
Appears in Collections:DEG - Artigos publicados em periódicos

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