Flow Simulation for Surface Irrigation Design

by Theodor S. Strelkoff, USDA/ARS, Phoenix, United States,

Document Type: Proceeding Paper

Part of: Management of Irrigation and Drainage Systems: Integrated Perspectives


Experience shows that even the most sophisticated and accurate computer models of the surface-irrigation process will not be widely used by design agencies unless they manifest a certain minimum of user friendliness. Version 21, the most recent update of SRFR, a computer program for simulating flow in irrigation borders, basins, and furrows, provides a front end with pull-down menus and dialog boxes (demonstrated in the poster session) for entry of field conditions and proposed design and management parameters. Output is similarly regulated, at user discretion. On-line animated screen graphics provide a direct indication of the results of a proposed design. Provision is made for graphically comparing the results of different options to help arrive at an optimum irrigation scheme. Run-time user intervention in display options is enabled through special key strokes. This paper describes the key assumptions in the simulations, and highlights the flow of program logic.

Subject Headings: Flow simulation | Computer models | Surface irrigation | Irrigation | Hydraulic design | Graphic methods | Flow visualization

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