Testing and application of a practical new 2D hydrodynamic model

A significant amount of effort is being directed towards finding ways to improve the management of urban drainage to reduce flooding. It is recognized that an integrated modelling approach is required, linking rivers and their floodplains with surface water and foul drainage systems. As a result of this, flood inundation modelling methods are starting to converge. The existing 1D InfoWorks software has recently been enhanced to include a 2D flood modelling capability. This 2D hydrodynamic modelling software incorporates links with the already existing 1D software for rivers (InfoWorks RS) and network systems (InfoWorks CS). This paper describes the results of a series of analytical tests used to validate the robustness of the new 2D modeling engine, results of its application to a real case study and, in some cases, comparisons of the results with other 2D flood models.