Structures

The horizontal dimension of structures is usually much smaller than the cell (element) sizes used in the computational grid. Therefore, the effect of struc­tures is modeled by a subgrid technique (the flow past a structure is modelled by considering the upstream and downstream water level). The layers are not considered separately. Six different types of structures can be included in the simulations:

·         Weirs

·         Culverts

·         Dikes

·         Gates

·         Piers

·         Turbines

Furthermore you have the option to include Composite structures by combining a weir and one or more culverts.

Note: A structure will only come into effect if placed in an area where water flow would exist without the structure.