HEC recently published a new training document called “Using HEC-RAS for Dam Break Studies”. Written by Gary Brunner, P.E., D.WRE, it is an easy to follow guide for performing Dam Break simulations in HEC-RAS. It covers topics like: Which routing technique to use to route flows through your reservoir (Dynamic or Level Pool-although I wish […]
One of the most powerful, yet relatively unknown features available in HEC-RAS is the HECRASController. The HECRASController API has a wealth of procedures which allow a programmer to manipulate HEC-RAS externally by setting input data, retrieving input or output data, and performing common functions such as opening and closing HEC-RAS, changing plans, running HEC-RAS, […]
Are you an HEC-RAS user? Yes? OK, try this out: 1. If you haven’t already done so, install the HEC-RAS example projects to the default location. 2. Open up a blank workbook in Excel. 3. Press Alt-F11. When the Visual Basic Editor Window opens up, select Tools…References… 4. Scroll down until you see HEC River […]
“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 […]
HEC-RAS 5.0 now provides a tool for quickly re-projecting model geometry within RAS. It is accessible from the main RAS interface under the Options menu…Convert Horizontal Coordinate Systems. From this window, the user must select the Current Project Spatial Reference System and the Destination Project Spatial Reference System by loading the appropriate projection file (*.prj) […]
HEC has just released an updated beta version of HEC-RAS 5.0. This is the third and final beta release before the final release due out in January 2015. This new release takes care of most of the bugs that have been reported and includes some nice new features like spatially varying Manning’s n values for […]
(Update: New release is now available here) Just heard from HEC that a new, updated beta version of HEC-RAS 5.0 will be coming out soon (later this month or early next). The full release of HEC-RAS Version 5.0 is still scheduled for the end of the calendar year. New features in the next beta release […]
Your computational mesh is what will allow you to do 2D modeling in HEC-RAS. Think of a mesh as a net that you drape over your terrain. The continuous properties of the “infinite” terrain are then discretized onto the mesh so that computations can be made over a finite domain. Here in the geometry editor, […]
There are a lot of new features in Version 5.0. We’ve discussed quite a bit the new two-dimensional capabilities. But a real pleasant surprise for me was how great the new RAS Mapper is. I’m going to try to highlight some of these new Mapper features over the next few months, but in this post […]
See link below for the latest newsletter. Check the last page especially for an editor’s note about HEC-RAS 5.0. FLOODPLAIN MANAGEMENT QUARTERLY NEWS AND ANALYSIS for FMA Members We are pleased to announce the Summer 2014 FMA Quarterly Newsletter. Highlights include: 2014 FMA Annual Conference – “Keeping Our Heads Above Water” FloodSmart Tools and Resources
For all you sediment transport enthusiasts, Marty Teal is giving this webinar in October. I highly recommend it. He has a wealth of experience in sediment transport modeling and is an excellent instructor. Go sign up if you want to learn more about sediment transport modeling in HEC-RAS!-Chris G.@RASModel ASCE Continuing Education and ASCE’s Environmental […]
Check out this great RAS2D presentation that Kevin Denn gave at the NHEC Conference last week.