For unsteady state 1D and 2D HEC-RAS models, initial conditions must be set up appropriately to not make the model crash or become unstable at the beginning of the modeling.…
For unsteady state 1D and 2D HEC-RAS models, initial conditions must be set up appropriately to not make the model crash or become unstable at the beginning of the modeling.…
The hydraulic opening width (area) of a skewed bridge is less than its unskewed value, which in turn would adversely impact the bridge hydraulic performance. The skew angle is defined…
To model infiltration loss within 2D domain for a Rain-on-Grid (RoG) HEC-RAS model, a land cover layer and a soils layer needs to be generated first and then an infiltration…
RAS Mapper of HEC-RAS 6 has a set of terrain modification tools to modify original terrain. This post is the third of the 3 post series for terrain modification using…
RAS Mapper of HEC-RAS 6 has a set of terrain modification tools to modify original terrain. This post is the second of the 3 post series for terrain modification using…
RAS Mapper of HEC-RAS 6 has a set of terrain modification tools to modify original terrain. Basically the terrain modification tools creates vectors (lines/simple shapes/polygons) with elevations assigned to them…
RAS Mapper of HEC-RAS Version 6 has some basic but useful GIS functions to complete some GIS operations and spatial analyses common to HEC-RAS modeling, although it could not replace…
In HEC-RAS 2D modeling, manning's n values (Roughness Coefficient) for 2D flow area are normally associated with land cover types and used to account for energy friction losses of overland…