2-D | Kleinschmidt

HEC-RAS 5.0 beta with 2D modeling is out!

***Note-this post was for the old 5.0 beta version.  Please get the latest version here:  http://hecrasmodel.blogspot.com/2014/10/updated-hec-ras-version-50-beta-now.html Hey RAS Modelers-The long awaited HEC-RAS Version 5.0 with 2D Modeling is finally out in beta form!  Please read the message below from Gary Brunner that provides instructions for downloading and installing HEC-RAS 5.0 beta.   Please note that there is a […]

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Lateral Structure Coefficients

Lateral structures can be used in HEC-RAS to transfer flow from a river/reach to a storage area, or to another river/reach.  With the coming release of HEC-RAS with 2D capabilities (estimated beta release January/February 2014), you’ll be able to hook a river/reach to a 2-D area using a lateral structure. Although its primary function in […]

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Quasi Two-Dimensional Modeling in HEC-RAS

One of the limitations of HEC-RAS is that it is a one-dimensional model. Simply put, RAS assumes all flow moves along a singular dimension. For a given cross section, all of the flow is assumed to move either downstream, or all of it moves upstream, along the singular dimension (which can be defined as a […]

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