Abstract: For water management questions on the national scale, for cross-border studies, or for water authorities it can be necessary to couple models of the same type, i. e. models that represent the same flow processes, but different modelling areas. With the help of a simple test case we explain how two Sobek models can be coupled externally or iteratively according to the OpenMI standard. Simulation results from external coupling and iterative coupling are compared with results from a fully coupled approach (simultaneous solution of the two Sobek models in one equation system). Conclusions on the choice of a coupling method for practical applications are made and technical recommendations are given.
Becker, B.; Talsma, J. (2013): On the external and iterative coupling of multiple open channel flow models with OpenMI. Revista de Ingeniería Innova 6, 51–66.