An approach for simulating the hydraulic performance of irrigation laterals |
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Authors: | Pedro Vallesquino |
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Institution: | (1) Universidad de Córdoba, C/Levante, No. 4, 1 - 3, Córdoba, Spain |
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Abstract: | A new method for simulating lateral hydraulics in laminar or turbulent flow has been developed. The outflow is considered
as a discrete variable and the friction head losses are calculated using the Darcy–Weisbach equation with an equivalent friction
factor. Local head losses are also computed by applying equivalent coefficients that can be dependent on Reynolds number.
Considering these premises, a compact expression that is valid for any type of regime has been deduced for calculating global
head losses along any lateral stretch. The proposed method is useful to workout the hydraulic computation of laterals with
the inlet segment at full or fractional outlet spacing, and complex laterals when a different pipeline diameter, slope, flow
regime or emitter gap have to be considered. |
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Keywords: | |
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