عنوان مقاله [English]
In this research finite elements approach and systems approach, are combined and a new framework for dynamic modeling of large problems and their solution by Decomposition-Coordination or Aggregation-Disaggregation algorithm is introduced. This framework enables the modeler to benefit from these two approaches in an integrated base and to simulate and optimize large water resources systems. To show applicability of this framework, a software named FEWREM is developed in this research. This model is compared to MODSIM via a case study the results show that MODSIM results in more shortages compared to FEWREM. In other words, the effectiveness of FEWREM in operating the water system is more than MODSIM.