A farm irrigation system (FIS) model

A mathematical model was developed to simulate farm irrigation systems (FIS). Open borders, closed borders, and/or furrows may constitute such systems. The model simulates the entire irrigation cycle of these systems. The volume balance method and some simple flow profile curves form the basis of the FIS model. Data from 25 vegetated and nonvegetated borders and six furrows were utilized to calibrate and verify the model. The test results showed that the model was accurate with less than 8% error in prediction of any of the phases of the irrigation cycle. These preliminary tests indicate that the FIS model is reasonably accurate for engineering applications.