Regresar

Comparison of the software packages ISIS and Mike11 for the simulation of open channel flow

Abstract:

In this study two well known commercial software packages for one-dimensional open channel flow are compared to each other: ISIS from HR Wallingford and Mike11 from the Danish Hydraulic Institute (DHI). The comparison is confined to the two most important modules, namely the hydrodynamic and the hydrological module. It is proven that the hydrodynamic parts of ISIS and Mike11 are very similar. They are both found on the same physical equations (de Saint Venant) and the difference in solution algorithms only leads to local differences in the results (e.g. at hydraulic jumps). ISIS and Mike11 take however a different view on how hydraulic structures are to be modelled. The differences between both packages are more pronounced for the hydrological modules and when the user friendliness is regarded. Finally both packages are compared to each other on the basis of a practical example, namely on the Dijle river in Belgium.