Data/hora: 23/06/2024 22:17:31

Biblioteca(s): | Embrapa Milho e Sorgo.
Data corrente: | 14/04/1999
Data da última atualização: | 11/06/2018
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
Registro original: | Embrapa Milho e Sorgo (CNPMS)
Exemplares: | CNPMS - (10640-1) - UPC - AP - DD -  -  -  - DIS