2D Hydraulic Modelling Software

Open-source 2D shallow-water modelling in Python from Geoscience Australia — strong for dam break and tsunami.

ETH Zurich's free 2D hydraulics and morphodynamics simulator — rivers, sediment and hazard mapping.

QGIS plugin for exploring mesh model results — animate TUFLOW, Telemac and HEC-RAS 2D outputs in the GIS.

Deltares' open flexible-mesh suite for rivers, estuaries and coasts — hydrodynamics to morphology.

Rapid flood modelling in the browser — steady-state inundation estimates in seconds, anywhere on earth.

Jacobs' 1D/2D river and floodplain suite — a UK practice staple with a genuinely useful free tier.

The world's most used hydraulic model: free 1D/2D river analysis, sediment, water quality and flood mapping.

Free Spanish 2D hydraulic model — flow, turbulence, sediment and habitat modules behind a full GUI.

Autodesk's integrated catchment model — the heavyweight for large sewer networks and coupled 2D flooding.

The Bristol raster flood model behind global flood maps — open source with GPU-accelerated solvers.

DHI's unified platform for rivers, urban drainage and distribution networks — successor to MIKE 11/MIKE URBAN.

CHI's commercial GIS front-end for SWMM — the most direct productivity upgrade for serious SWMM users.

Deltares' reduced-complexity compound flood model — coastal, fluvial and pluvial drivers in one fast solver.

The US Bureau of Reclamation's free 2D river model — FHWA's preferred engine for bridge hydraulics.

Benchmark-setting commercial 1D/2D flood engine with GPU acceleration — dominant in AU/UK flood studies.

EDF's open-source finite-element suite for free-surface flow — 2D/3D rivers, estuaries, waves and sediment.

Python control and post-processing for 2D hydraulic models — SRH-2D and HEC-RAS 2D results to VTK and beyond.