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Full-Text Articles in Soil Science
Optimal Irrigation Management For Sloping, Blocked-End Borders, Jorge Jose Escurra
Optimal Irrigation Management For Sloping, Blocked-End Borders, Jorge Jose Escurra
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
A robust mathematical model of one-dimensional flow for sloping, blocked-end border irrigation was developed using the four-point implicit method to solve the Saint-Venant equations, the volume-balance solution method, and the implementation of new algorithms to avoid numerical instability and solution divergence. The model has the capability of successfully simulating all surface irrigation phases in blocked-end borders for a range of inflow rates (0.01 - 0.05 m3/s per m), longitudinal slopes (up to 1.00%), and border lengths (100 - 500 m).
To achieve numerical stability over the specified parameter ranges, the model was divided into three parts: (1) advance-phase …