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 | Acesso ao texto completo restrito à biblioteca da Embrapa Milho e Sorgo. Para informações adicionais entre em contato com cnpms.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
14/04/1999 |
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Data da última atualização: |
11/06/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ANDRADE, C. de L. T. de; ALLEN, R. G.; WELLS, R. D. |
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Afiliação: |
CAMILO DE LELIS TEIXEIRA DE ANDRADE, CNPMS. |
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Título: |
SPRINKMOD - pressure and discharge simulation model for pressurized irrigation systems. 3. Sensitivity to lateral hydraulic parameters and leakage. |
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Ano de publicação: |
1999 |
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Fonte/Imprenta: |
Irrigation Science, New York, v. 18, p. 157-161, 1999. |
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Idioma: |
Inglês |
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Conteúdo: |
A computer model, SPRINKMOD, was tested with field collected from a simple sprinkler irrigation system in operation. The original data for laterals and the amount and way leakage is considered were modofied to evaluate the model sensitivity. The model predicted the pump station flow rate within 2% and the pump station pressure head within 5% with the original data collected. For this irrigation system, no practical effect was observed in the system operating point by changing the lateral pipe charateristics, lateral leakage amount and distribution, lateral pipe roughness and lateral local loss coefficient for flow past a rise outlet. The amount of leakage had more effect on the model simulation of pressure heads than the way leakage was considered, localized or distributed along the laterals. The use a variable local loss coefficient, K along the 350-m hand-move laterals had a negligible effect on both system operating point and distribution of pressure heads along the laterals. |
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Palavras-Chave: |
Analise de sensibilidade; Hidraulica de lateral; Lateral hydraulica; Leakage simulation; Sensitivity analysis; Simulacao de vazamento; Sprinker. |
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Thesagro: |
Aspersão; Irrigação. |
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Thesaurus Nal: |
irrigation. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 01840naa a2200265 a 4500
001 1482097
005 2018-06-11
008 1999 bl uuuu u00u1 u #d
100 1 $aANDRADE, C. de L. T. de
245 $aSPRINKMOD - pressure and discharge simulation model for pressurized irrigation systems. 3. Sensitivity to lateral hydraulic parameters and leakage.$h[electronic resource]
260 $c1999
520 $aA computer model, SPRINKMOD, was tested with field collected from a simple sprinkler irrigation system in operation. The original data for laterals and the amount and way leakage is considered were modofied to evaluate the model sensitivity. The model predicted the pump station flow rate within 2% and the pump station pressure head within 5% with the original data collected. For this irrigation system, no practical effect was observed in the system operating point by changing the lateral pipe charateristics, lateral leakage amount and distribution, lateral pipe roughness and lateral local loss coefficient for flow past a rise outlet. The amount of leakage had more effect on the model simulation of pressure heads than the way leakage was considered, localized or distributed along the laterals. The use a variable local loss coefficient, K along the 350-m hand-move laterals had a negligible effect on both system operating point and distribution of pressure heads along the laterals.
650 $airrigation
650 $aAspersão
650 $aIrrigação
653 $aAnalise de sensibilidade
653 $aHidraulica de lateral
653 $aLateral hydraulica
653 $aLeakage simulation
653 $aSensitivity analysis
653 $aSimulacao de vazamento
653 $aSprinker
700 1 $aALLEN, R. G.
700 1 $aWELLS, R. D.
773 $tIrrigation Science, New York$gv. 18, p. 157-161, 1999.
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