Materials assigned in the Material dialog.An Area Properties coverage with polygon defining material areas.However, if this is not done, the following is needed: Materials can be defined on the 1D Hyd Cross Section coverage. 1D Hyd Cross Sections coverage with defined cross section arcs.1D Hyd Centerline coverage with a defined centerline arc.This requires the following be available:

*_projection.prj – The projection/coordinate system used by the project in SMS.For post-processsing, open this file in the HEC-RAS software. Export HEC-RAS – Exports the mesh geometry so it can be imported into HEC-RAS.Ī HEC-RAS simulation in SMS will generate a number of files for use in the HEC-RAS program.Model Check – Launches the model checker to look for problems with the simulation setup.Right-clicking on a HEC-RAS simulation provides a menu with the standard simulation menu commands and the following commands specific to HEC-RAS: Components can then be linked to simulations by dragging the components under the simulation or by right-clicking on the component item and using the Link To submenu.Ĭomponents for the HEC-RAS simulation include the following: To create a new simulation, right-click in the Project Explorer and select New Simulation | HEC-RAS. SMS can run multiple HEC-RAS simulations using the same components. Starting in SMS 12.2, HEC-RAS uses a simulation process. The HEC-RAS model can be added to a paid edition of SMS.Įxample of a HEC-RAS simulation in the Project Explorer SMS continues to include tools for defining river networks and cross-sections. All of the mesh generating options supported in the SMS may be used to generate/edit a grid for use in HEC-RAS 2D. This new interface is a simulation-based interface that allows defining multiple simulations with individual settings in a single SMS project. With the 2D version of HEC-RAS, a new SMS interface to HEC-RAS has been added (starting with SMS 12.2). The WMS package has also developed floodplain mapping tools to generate floodplains from HEC-RAS results. These cross sections can be imported from the HEC-RAS system in the form of an SDF file (exported by HEC-Ras) and saved as a HEC-GeoRAS file for inclusion into a HEC-RAS project. Historically, SMS and WMS have supported tools for creating and editing cross sections and attributes for these cross sections for one dimensional HEC-RAS 1D. Two dimensional capabilities were added to HEC-RAS 5.0 in 2016.

HEC-RAS is able to model obstructions in the flow path. HEC-RAS supports networks of channels and is capable of modeling subcritical, supercritical, and mixed flow regime profiles. The Hydrologic Engineering Center's River Analysis System (HEC-RAS) is a one- and two-dimensional model for computing water surface profiles for steady state or gradually varied flow.

Run a flt file on hec ras