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Campo DC | Valor | Idioma |
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dc.creator | Prado, Giuliani do | - |
dc.creator | Colombo, Alberto | - |
dc.date.accessioned | 2021-05-14T19:03:33Z | - |
dc.date.available | 2021-05-14T19:03:33Z | - |
dc.date.issued | 2020-08 | - |
dc.identifier.citation | PRADO, G. do; COLOMBO, A. Asymmetric wetted sector angle in water distribution of traveling gun irrigation systems. Engenharia Agrícola, Jaboticabal, v. 40, n. 4, p. 443-452, jul./aug. 2020. DOI: http://dx.doi.org/10.1590/1809-4430-Eng.Agric.v40n4p443-452/2020. | pt_BR |
dc.identifier.uri | http://repositorio.ufla.br/jspui/handle/1/46281 | - |
dc.description.abstract | This work aimed to simulate the water distribution of traveler gun irrigation, working with asymmetrical wetted angles and in windy conditions. In the simulations of a sprinkler with uniform radial profile, the following were considered: i) wetted angles between 180 and 330°; ii) wetted angle asymmetries from 0 to 90°; iii) wind speeds from 0 to 4.5 m s-1; and iv) wind direction of 0, 45, and 90°. Christiansen uniformity coefficients (CU) were calculated for strip widths from 30 to 100% of the sprinkler wetted diameter (WD). Regardless of the wetted angle adjustment, irrigations under wind speeds of 4.5 m s-1 should be avoided and strip spacings of less than 50% WD provide high CU for wind speeds up to 3.0 m s-1. For any wind conditions, asymmetries in the wetted angle led to a reduction in CU for a wetted angle of 210°. In the range of wetted angle from 270 to 330°, asymmetric adjustments of up to 20° provided a higher CU than 80% for a wind speed of 3 m s-1 and directions diagonal and perpendicular to the travel path associated with strip spacings between 60 to 70% WD, which are the spacings recommended by manufacturers of traveler irrigation machines. | pt_BR |
dc.language | en | pt_BR |
dc.publisher | Associação Brasileira de Engenharia Agrícola | pt_BR |
dc.rights | Attribution 4.0 International | * |
dc.rights | acesso aberto | pt_BR |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | * |
dc.source | Engenharia Agrícola | pt_BR |
dc.subject | Strip width | pt_BR |
dc.subject | Travel path | pt_BR |
dc.subject | Uniformity coefficient | pt_BR |
dc.subject | Irrigação móvel | pt_BR |
dc.subject | Irrigação por aspersão | pt_BR |
dc.subject | Largura da faixa irrigada | pt_BR |
dc.subject | Coeficiente de Uniformidade (Cu) | pt_BR |
dc.title | Asymmetric wetted sector angle in water distribution of traveling gun irrigation systems | pt_BR |
dc.type | Artigo | pt_BR |
Aparece nas coleções: | DEG - Artigos publicados em periódicos |
Arquivos associados a este item:
Arquivo | Descrição | Tamanho | Formato | |
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ARTIGO_Asymmetric wetted sector angle in water distribution of traveling gun irrigation systems.pdf | 1,57 MB | Adobe PDF | Visualizar/Abrir |
Este item está licenciada sob uma Licença Creative Commons