HEC-RAS
HEC-RAS is hydraulic modeling software used to perform one-dimensional hydraulic calculations for natural and constructed channels. It is commonly used for floodplain mapping, flood damage reduction studies, and flood risk management.
HEC-RAS: Hydraulic Modeling Software for Natural & Constructed Channels
One-dimensional hydraulic calculations for floodplain mapping, flood damage reduction studies, and flood risk management - HEC-RAS software by US Army Corps of Engineers
What is HEC-RAS?
HEC-RAS (Hydrologic Engineering Center's River Analysis System) is modeling software developed by the U.S. Army Corps of Engineers used to perform one-dimensional hydraulic calculations for natural and constructed channels. HEC-RAS is capable of modeling steady and unsteady flow conditions, including subcritical, supercritical, and mixed flow regimes.
Some of the key features and applications of HEC-RAS include:
- River hydraulics and floodplain mapping
- Flood damage reduction studies
- Flood risk management
- Modeling of bridges, culverts, weirs, and other hydraulic structures
- Sediment transport and water quality modeling
- Model calibration and validation tools
- 2D flow modeling
HEC-RAS seamlessly integrates with other software developed by the Corps of Engineers, including HEC-HMS (hydrologic model) and ArcGIS for geospatial analysis. Overall, HEC-RAS provides sophisticated 1D and 2D modeling capabilities for simulating hydraulic behavior and flood dynamics.
HEC-RAS Features
Features
- 1D steady and unsteady flow river hydraulics
- Floodplain mapping
- Bridge and culvert modeling
- Dam and levee breach analysis
- Flood damage analysis
- Sediment transport capabilities
Pricing
- Free
Pros
Widely used and accepted by regulatory agencies
Integrates well with GIS software
Free and open source
Large user community and online support
Cons
Steep learning curve
1D modeling has limitations for complex flows
Limited 2D capabilities
User interface is outdated
Reviews & Ratings
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