Simulation and Optimization of Irrigation Networks Performance Under Different Operation Conditions Using Ant Colony Algorithm

In order to determine the Correct optimal Management of Agricultural water، optimum use of water in irrigation networks is necessary. One factor in the complexity of irrigation networks and water management is unsteady flow. Sources of unsteady flow in irrigation networks are different but the most important source is irrigation canal operation. Optimum set of control structures for the management of unsteady flow can improve the performance of irrigation networks. For this purpose The ICSS hydrodynamic model linked to Ant Colony optimization method and the ICSS-Ant model was developed. In this research at first some alternatives of unsteady flow in E1R1 canal of Dez irrigation network simulated and using assessment indexes the rate of canal performance decrease calculated. Then using ant colony algorithm all options in optimal conditions were simulated. The output of the simulation- optimization model is optimal tuning of canal structures involes turnouts opening and and the height of check structures. After optimization result we can see totally the canal performance improved and for other results the reason is ideal condition for initial canal condition.