Now that the official release of HEC-RAS 5.0 is out with 2D capabilities, I’m getting a lot of questions about whether 1D or 2D (or 1D/2D combined) is the best way to set up a specific model. The answer is very simple. Like everything else…It depends! Fortunately, there are some guidelines. 1. The general […]
A nice replication of the Mamore Flood of 2014 in Bolivia using HEC-RAS Version 5 courtesy of Vladimir Moya.
I’ll be teaching our very popular 2D HEC-RAS course in my home town of Portland Oregon, just in time to feature the official release of HEC-RAS 5.0. If you live in the area, or you’ve always wanted to figure out why everyone is talking about Portland (and HEC-RAS 5.0!), read on for more information […]
The wait is over! Finally the official release of HEC-RAS Version 5.0 is here. You can download it from the HEC website at http://www.hec.usace.army.mil/software/hec-ras/ If the download from the HEC website is slow, you can also download it from here: http://drive.google.com/file/d/0B0bpiyLiUeRXTy1pdUNralMzZ1U/view?usp=sharing (207 MB, Installation package without example problems) http://drive.google.com/file/d/0B0bpiyLiUeRXNGllMlE5V1dmQmM/view?usp=sharing (538 MB, Installation package with example problems) This new […]
The 2D HEC-RAS class is a GO! Who wants some HEC-RAS 2D Modelling training? This will be a fantastic opportunity to learn how to set up and run 2D and 1D/2D HEC-RAS models. Mr. Krey Price and I will be hosting this course in Melbourne, Australia on April 5, 6, and 7th. Please go here for more details […]
You can have a 2D full momentum model without errors if: Your cell size and computation interval is appropriate Everything is moving very slowly Stages are high Slopes are shallow N values are high Discharge doesn’t change too suddenly It’s a 2D only model (i.e. no connections to 1D) You are a skilled HEC-RAS modeler […]
The 2D HEC-RAS class is a GO! Who wants some HEC-RAS 2D Modelling training? This will be a fantastic opportunity to learn how to set up and run 2D and 1D/2D HEC-RAS models. Mr. Krey Price and I will be hosting this course in Melbourne, Australia on April 5, 6, and 7th. Please go here for […]
In case you haven’t seen it, there has been a very popular LinkedIn discussion on the Hydraulic/Hydrologic Modeler’s Forum debating the advantages, disadvantages, and merits of HEC-RAS 5.0, TUFLOW, and DHI’s MIKE21. There was a lot of great information (and some misinformation) and insight provided in that thread. It is well worth the read. Some […]
The following article written by Mr. David Markwood of AECOM provides an excellent summary of the latest beta (candidate) version of HEC-RAS 5.0. Well worth the read! http://www.linkedin.com/pulse/hec-ras-50-beta-update-david-r-markwood-pe
*Update: Version 5.0.2 now does flow transects in RAS Mapper with profile lines. No longer necessary to use a 2D Area Connection to do this. A very common output request in 2D modeling is for flow over (through) a transect line. HEC-RAS 5.0 does not have a specific tool for extracting flow data along a […]