Hydraulic Modeling for Steady & Unsteady Open Channel Flow Computations


Application:Hydraulic Modeling
Model Type:1D
Developer:Hydrologic Engineering Center,
U.S. Army Corps of Engineers

National Flood Insurance Program (NFIP) LogoHEC-RAS Is a FEMA Approved Model


Why HEC-RAS with WMS?
WMS provides a custom interface to the HEC-RAS model offering a simple way to set model parameters and a graphical user interface to run the model and visualize the results. Gather background data from a variety of sources from GIS to CAD and access online data from numerous databases of maps, images, elevation, land use, and soil data. WMS allows you to interact with models in true 3D taking advantage of optimized OpenGL graphics and to create photo-realistic renderings and animations for PowerPoint, print, and web presentations.

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HEC-RAS Description:
The HEC-RAS system will ultimately contain three one-dimensional hydraulic analysis components for: (1) steady flow water surface profile computations; (2) unsteady flow simulation; and (3) movable boundary sediment transport computations. Currently steady and unsteady flow are available and sediment transport is under development. A key element is that all three components will use a common geometric data representation and common geometric and hydraulic computation routines. In addition to the three hydraulic analysis components, the system contains several hydraulic design features that can be invoked once the basic water surface profiles are computed, including bridge scour computations, uniform flow computations, stable channel design, and sediment transport capacity. The current version of HEC-RAS supports steady and unsteady flow water surface profile calculations. New features and additional capabilities will be added in future releases.

Download the latest HEC-RAS release from the US Army Corps of Engineers for free! Click Here to read about HEC-RAS and to download software