Abstract
WinSRFR is a software package for the hydraulic analysis of surface irrigation systems. The software can be used to conduct simulations, carry out design and operational analyses, and evaluate performance from field-measured data. Version 3.1 was released in 2009 and a new version, V. 4.1 is scheduled for 2012. This release provides a limited number of analytical enhancements for the end user, but it represents a major software upgrade. The simulation engine, known as SRFR, has been entirely rewritten using modern object-oriented programming concepts. This recoding effort was undertaken to facilitate the continued development of the SRFR code and to provide the application with a well-defined application programming interface. The paper discusses the architecture of the new SRFR engine and the resulting enhancements to the WinSRFR program. BACKGROUND WinSRFR (Bautista et al., 2009) is a software package for the hydraulic analysis of surface irrigation systems. The software was developed to support practical analyses of surface irrigation systems, but it is also intended to serve as a vehicle for continued research and development in surface irrigation hydraulics. A central component of the software is its unsteady flow simulation engine, SRFR. SRFR predicts the surface and subsurface flow of water for known geometrical configurations, infiltration and hydraulic roughness conditions, and boundary conditions. WinSRFR includes tools for irrigation system evaluation, design, and operational analysis, all of which are supported by SRFR calculations.
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