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Registro Completo |
Biblioteca(s): |
Embrapa Milho e Sorgo. |
Data corrente: |
14/04/1999 |
Data da última atualização: |
11/06/2018 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
ANDRADE, C. de L. T. de; ALLEN, R. G.; WELLS, R. D. |
Afiliação: |
CAMILO DE LELIS TEIXEIRA DE ANDRADE, CNPMS. |
Título: |
SPRINKMOD - pressure and discharge simulation model for pressurized irrigation systems. 3. Sensitivity to lateral hydraulic parameters and leakage. |
Ano de publicação: |
1999 |
Fonte/Imprenta: |
Irrigation Science, New York, v. 18, p. 157-161, 1999. |
Idioma: |
Inglês |
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. |
Palavras-Chave: |
Analise de sensibilidade; Hidraulica de lateral; Lateral hydraulica; Leakage simulation; Sensitivity analysis; Simulacao de vazamento; Sprinker. |
Thesagro: |
Aspersão; Irrigação. |
Thesaurus Nal: |
irrigation. |
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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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Embrapa Milho e Sorgo (CNPMS) |
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Registro Completo
Biblioteca(s): |
Embrapa Milho e Sorgo. |
Data corrente: |
08/09/1997 |
Data da última atualização: |
26/08/2015 |
Tipo da produção científica: |
Artigo de Divulgação na Mídia |
Autoria: |
RAMALHO, M. A. P. |
Afiliação: |
EMBRAPA/CNPMS. |
Título: |
Consorciação milho-feijão. |
Ano de publicação: |
1983 |
Fonte/Imprenta: |
A Lavoura, Rio de Janeiro, v. 85, p. 36-38, 1983. |
Idioma: |
Português |
Palavras-Chave: |
Bean; Consorciacao; Maize. |
Thesagro: |
Feijão; Milho; Phaseolus Vulgaris; Zea Mays. |
Thesaurus NAL: |
intercropping. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/78115/1/Consorciacao-milho.pdf
|
Marc: |
LEADER 00520naa a2200205 a 4500 001 1476273 005 2015-08-26 008 1983 bl uuuu u00u1 u #d 100 1 $aRAMALHO, M. A. P. 245 $aConsorciação milho-feijão.$h[electronic resource] 260 $c1983 650 $aintercropping 650 $aFeijão 650 $aMilho 650 $aPhaseolus Vulgaris 650 $aZea Mays 653 $aBean 653 $aConsorciacao 653 $aMaize 773 $tA Lavoura, Rio de Janeiro$gv. 85, p. 36-38, 1983.
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