EPA SWMM to TUFLOW: Difference between revisions

[[File:SWMM_to_TUFLOW_Example.png | 1000px]]

 

* SWMM open channel geometry may include both the channel and adjacent floodplain within the cross-section information. If the intention is to link the 1D to TUFLOW 2D, with 2D representing the floodplain, manual update of the cross-section information to limit the extent of the open channel section will be needed. The cross-section extent is displayed spatially in the GIS cross-section output. Edit the associated csv out file to modify the cross-section properties used in the modelling.

* SWMM includes a larger range of inbuilt culvert geometry types than TUFLOW 1D. TUFLOW 1D primarily supports Circular (C) and Rectangular (R) as hardcoded culvert / pipe geometries. All others SWMM culvert types are converted to TUFLOW 1D Irregular (I) culverts, with an associated Height vs Width 1D cross-section to define the culvert geometry.