SPRINKMOD - Simulation of pressure and discharge distributions in pressurized irrigation systems: Graphical interface and strategy of design

SPRINKMOD is a computer model that simulates pressure and flow rate distrib utions along pipes and laterals of pressurized irrigation systems. The soft ware runs in a WINDOWS(R) environment and simulates irrigation systems havi ng multiple pump stations combined in series and/or in parallel, booster pu mp stations, parallel pipes and looping pipes in addition to more tradition al, branched pressurized irrigation systems. Lateral types include hand-mov e, wheel line and center pivot laterals that may utilize pressure regulator s and booster pumps. Leakage is included in the main pipe network and along the laterals and effects of plugged or worn nozzles are accounted for. Pra ctically any type of nozzle and pump can be simulated since cubic spline fu nctions are used to interpolate values from head-flow rate sets of data. Al gorithms were developed and adapted to convert laterals into a single set o f head-flow rate data so that a simplified algorithm can be used to solve t he entire pipe network. A user-friendly interface is used to allow data for pumps, nozzle and pressure regulators to be interactively entered, edited and analyzed. The layout of the irrigation system is drawn on screen using the mouse.