Algebraic Computation of Flow in Furrow Irrigation
Publication: Journal of Irrigation and Drainage Engineering
Volume 113, Issue 3
Abstract
A complete algebraic model simulating furrow irrigation is presented. It can be used to analyze and predict the performance of sloping openended furrow irrigation systems, based upon the solution of a mass conservation equation. The model input variables are: length, slope, Manning roughness, infiltration parameters, furrow shape, inflow rate, and cutoff time. All the information necessary to estimate the distribution of water and water‐application efficiency for a particular irrigation event are obtained. Model performance is evaluated by comparison with field data and a more complex hydrodynamic model. Results show that the model gives reasonable results and, in most cases, more accurate results than more complicated models.
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Copyright © 1987 ASCE.
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Published online: Aug 1, 1987
Published in print: Aug 1987
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