Boundary Conditions | Kleinschmidt

Closing the wormhole with the new features in HEC-RAS 5.0.4!

The Great Hobbiton Flood For those who have used wormhole culverts or mega-cell culverts in previous versions of HEC-RAS, you’ll be relieved to hear that they have officially been retired with the May 2 release of the new Version 5.0.4. It sounds like the new features are already getting lots of use, and online and […]

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Using User-Defined Curves for Gates

HEC-RAS allows for four different gate types that will compute the stage-discharge relationship of that gate for you based on the physical size/shape of the gate and a few empirical coefficients:  Sluice Gates, Radial Gates, Overflow Gates (closed top) and Overflow Gates (open air).  However, sometimes the built-in gate types don’t quite fit the gate […]

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Sediment Transport Quasi Unsteady Flow Editor Flow Series Error

“Flow or Temp time series date is not sufficient to run requested time window.”  This one has been around for a while, but it just showed up again on the Facebook HEC-RAS User’s Group, so I thought I’d show the fix(es) here.  This applies to the new beta version of 5.0, as well as previous […]

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Advanced Rules for Unsteady Flow

This is a great presentation put together by Mr. Steven Piper of the Hydrologic Engineering Center that discusses in detail the use of “Rules” at inline structures.  Dr. Michael Gee forwarded this presentation to me after seeing some discussion on the forum about the use of Rules for inline structures.  Thanks for the suggestion Dr. […]

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