XPSWMM to TUFLOW-SWMM: Difference between revisions

XPSWMM is a flood and urban stormwater drainage modeling software developed by Autodesk (previously Innovyze and XP Solutions). The XPSWMM solution uses EPA SWMM for its 1D calculations, dynamically linked to TUFLOW for its 2D calculations. The software functions within a custom build Graphical User interface (GUI). DuringUnknown to many XPSWMM modelers, during simulation, XPSWMM callsprocesses its inputs ainto TUFLOW dynamicfiles libraryand also calls TUFLOW for the 2D calculations. As XPSWMM uses TUFLOW for its 2D engine, XPSWMMlike-for-like andresults can be achieved using these software. TUFLOW useis the samenatural 2Dreplacement solutionfor andXPSWMM willfor achievepeople identicalwho resultsare iflooking configuredfor inan aalternative like-for-likesolution following Autodesk's recent XPSWMM pricing, licensing and support waychanges.

Common user feedback suggests the XPSWMM GUI is useful for simple modeling projects; however, it can become cumbersome and workflow inefficient in workflow when dealing with larger datasets and/or a large volume of different scenario and event simulations. In response to requests from USA XPSWMM users who want to convert XPSWMM models into a native TUFLOW format, TUFLOW linkage with 1D EPA Storm Water Management Model (SWMM) was added as a supported feature in TUFLOW 2023-03-AD release. The modeling workflow in TUFLOW differs from XPSWMM, as TUFLOW modeling is integrated with QGIS (Geographical Information System) GIS software. This is however a net positive. GIS integration is well-suited for working with larger datasets. Additionally, the structural design associated with TUFLOW modeling makes its general workflow extremely efficient, particularly for the automated management of multiple scenarios and events.

If you are an existing / or past XPSWMM perpetual license owner who would like to purchase a TUFLOW license, please contact <u>[mailto::sales@tuflow.com sales@tuflow.com]</u>. You may be eligible for ana XPSWMM / TUFLOW discount in recognition of past royalties Autodesk paid TUFLOW whenif you previously purchased an XPSWMM perpetual license.

The XPSWMM model used for this model conversion demonstration is available for download here: <u>[https://downloads.tuflow.com/SWMM/XPSWMM_to_TUFLOW_Model_Conversion.zip XPSWMM to TUFLOW Model Conversion Dataset]</u>. If you are using this example conversion dataset, please rerun the XPSWMM model in the location where you save the dataset before beginning the conversion to TUFLOW process. Rerunning the model is necessary because XPSWMM will write TUFLOW files during its preprocessing, subsequently defining the correct file path information (for the location where you saved your files) in the newly written TUFLOW files.