HEC-RAS
FreeVerified
The world's most used hydraulic model: free 1D/2D river analysis, sediment, water quality and flood mapping.
Hydraulics & River SystemsActiveRiver Modelling2D Hydraulic Modelling
TUFLOW
ActiveBenchmark-setting commercial 1D/2D flood engine with GPU acceleration — dominant in AU/UK flood studies.
by BMT
- Pricing
- Commercial
- License
- Proprietary
- Commercial use
- Permitted
- Ecosystem
- QGIS, SMS
- Platform
- Windows, Linux (HPC)
About TUFLOW
TUFLOW, from BMT, is the flood-modelling engine that consistently tops the UK Environment Agency 2D benchmarking exercises. Its HPC solver runs the full shallow-water equations on GPU with sub-grid sampling, quadtree meshes and best-in-class stability, coupled to ESTRY 1D networks for pipes and channels. TUFLOW dominates flood-risk practice in Australia and holds a large share of UK studies.
It is commercial and licensed per core/GPU, with model building typically done in QGIS (the free TUFLOW plugin) or SMS. For large urban and catchment-wide flood models where run time and stability matter, it is the engine to beat.
Where it fits in the workflow
TerrainCatchmentRainfallRunoffRoutingHydraulicsMappingReporting
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