Simulating wind effect on microsprinkler water distribution

Scientia Agricola

Marco Antônio Fonseca Conceição²  Rubens Duarte Coelho¹ 

[1] ,Embrapa Uva e Vinho Estação Experimental de Jales Jales SP ,Brasil

关键词: irrigation;    software;    irrigação;    programa computacional;   

DOI  :  10.1590/S0103-90162003000200001

来源: SciELO

【 摘 要 】

Wind incidence can affect microsprinkler water distribution. Evaluations of those conditions can be facilitated using simulations by computational models. The present work evaluates the performance of a ballistic model on simulating the wind effect on microsprinkler water distribution. Experimental tests were carried out using self-compensating microsprinklers, nozzle sizes 1.00 mm (gray), 1.10 mm (brown), 1.48 mm (orange), and 1.75 mm (yellow). The gray and brown nozzles used black swivels and the orange and yellow nozzles used blue swivels. The wind effect was artificially caused by fourteen 200 W fans. Computational simulations were realized using SIRIAS software, based on a ballistic model originally developed for sprinkler systems. The correlation coefficients (r) varied from 0.619 to 0.880, while the exactness coefficients (d) varied from 0.842 to 0.944. Swivels internal geometry influenced results. Tested models presented performances classified as very good for the black swivel nozzles and regular for the blue swivel nozzles.

【 授权许可】

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