GeoHECRAS 2D significantly speeds up creation and review of 1D and 2D HEC-RAS models, producing better and more accurate results. 2D bridge modeling, FEMA 2D floodplain encroachment modeling, 2D dam failure modeling and 2D stream restorations are just some of the projects that can be quickly completed using GeoHECRAS 2D. Automatic mesh creation, automatic bad element fixing, adaptive meshing, 2D conveyance obstructions and automatic mesh refinement greatly increase engineering productivity. Also, because GeoHECRAS 2D is a data wrapper to the USACE HEC-RAS software, everything is done within HEC-RAS using GeoHECRAS’ AutoCAD compatible graphical user interface.
The Draw 2D Mesh Face command allows the user to draw a mesh patch (or mesh template) and direct the software to honor the drawn patch when generating the mesh.
2D Floodplain Encroachments
The 2D Floodplain Encroachment command automates the placement and analysis of floodplain encroachments along the river reach when performing a 2D steady or unsteady flow computation.
Adaptive 2D Mesh
In addition to HEC-RAS’ default rectangular (structured) 2D computational mesh, the software can create an adaptive 2D mesh to better represent more complicated 2D flow conditions and structures.
Particle Tracking Maps
Plot moving particles on the flood map to represent the flow field for both 1D river reaches and 2D flow areas.
2D Flow Training Structures
Incorporate 2D flow training structures for river and stream restoration projects. Define river structural measures to improve the flow of the river and maintain the channel within the floodway, preventing and reducing river channel migration during flood events.
2D Ineffective Flow Areas
Ineffective flow areas can be assigned to the 2D mesh using polylines or polygons. Alternatively, draw ineffective flow areas on the Map View.
2D Conveyance Obstructions
Conveyance obstructions can be assigned to the 2D mesh using polylines or polygons. Alternatively, draw conveyance obstructions on the Map View.
Auto Fix 2D Mesh Bad Elements
The Army Corps of Engineers HEC-RAS software generates 2D meshes that contain elements that are marked “bad” and require manually fixing by the user.
Remember 2D Mesh User Edits
As you modify the 2D mesh by inserting additional elements, moving elements, and performing other mesh element editing, the software remembers these edits.
Assign Land Cover Data
Assign land cover polygons and/or National Land Cover Database (NLCD) data as Manning’s roughness to cross sections and 2D flow areas.
Google Earth Map Animation
Export flood map animations to Google Earth. This is helpful for presentations on flood risk assessment and flood management.
Animated Flood Maps
For unsteady flow models, the flood map can be animated to show how it changes with time.
Velocity Vector Maps
Plot velocity vectors on the flood map to represent the flow field for both 1D river reaches and 2D flow areas.
Flood Hazard Maps
Create 2D flood hazard maps, including:
Flood Arrival Time
Depth x Velocity
Depth x Velocity²
Flood Recession Time
% Time Inundated
2D Bridge Analysis
Stamp bridge piers into the 2D mesh for the following pier shapes:
Compute HEC-RAS steady and unsteady flow results directly within the software.
Unlimited Undo and Redo
Correct mistakes easily with unlimited Undo and Redo capability.
Expert Technical Support
Toll-free 24-hour 7-day a week unlimited technical support by experienced HEC-RAS modelers is just a phone call away. Quickly resolve your HEC-RAS modeling questions and complete your engineering project—our skilled, professional engineers are here to assist you.
Powerful 64-bit, Multi-Core Support
Handle larger projects with powerful 64-bit, multi-core, parallel processing support.
Complete HEC-RAS reporting is provided, including cross section plots, cross section tables, profile plots, profile tables, and more.
What-If Scenario Manager Analysis
Compare different engineering models, such as existing and proposed bridges, river realignments and restorations, and more.
“Why doesn’t HEC-RAS do this?” was a question Anna Negrete of CEI Engineering Associates, Inc. (formerly at Crafton Tull) would often ask before she started using GeoHECRAS…
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