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
Iber
ActiveFree Spanish 2D hydraulic model — flow, turbulence, sediment and habitat modules behind a full GUI.
by GEAMA / Flumen / CIMNE
- Pricing
- Free
- License
- Freeware
- Commercial use
- Permitted
- Ecosystem
- GiD
- Platform
- Windows
About Iber
Iber, developed by GEAMA (University of A Coruña), the Flumen institute and CIMNE, is a freeware 2D finite-volume model for river hydraulics and floodplain inundation with modules for turbulence, sediment transport, water quality and habitat assessment — all inside a complete GUI built on GiD, so no separate mesh generator is needed.
It is the de facto standard for flood studies in Spain and widely used across Latin America; recent versions added GPU computing. For a zero-cost package with a real interface, Iber's breadth of modules is hard to match.
Where it fits in the workflow
TerrainCatchmentRainfallRunoffRoutingHydraulicsMappingReporting
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