Version 5 of HEC-RAS allows the use of rating curves for inline structures (and lateral structures). Rating curves can be added through the Outlet RC feature in the inline structure editor. Inline structure rating curves can be useful for evaluating the impacts of structures, such as labyrinth dams, where it may be difficult to correctly […]
Many readers have been asking how to create shapefiles and other static maps in RAS Mapper. One of the main differences between RAS Mapper in RAS 4.1 and RAS 5.0 is the existence of Dynamic Maps. What makes these maps dynamic is that when you have that Results Layer selected in RAS Mapper, you can […]
Limited-time early-bird discounts available Registrations are now available for our dam breach course in Auckland, New Zealand to be held from 29 November to 1 December 2016. I will be teaching this course with help from Mr. Krey Price of Surface Water Solutions. Please come and join us! Register here: www.surfacewater.biz/auckland/ We have fewer than […]
Dam breach course in New Zealand and Round 2 of HEC-RAS 5.0 2D courses across Australia! We had a great turnout for our first HEC-RAS 2D course in Melbourne back in April, and I’m excited to be returning to the southern hemisphere in November to teach a 3-day HEC-RAS Dam Breach course to be […]
Para los compañeros usuarios de HEC-RAS viviendo dentro o cerca de España, mi colega Marty Teal estará dictando dos cursos de modelación bidimensional con HEC-RAS5.0 allá en Octubre: en Barcelona el 19-21 y en Sevilla el 24-26. Me gustaría estar allá pero Marty habla español mucho mejor que yo 🙂 Vaya aquí para más información. […]
Back in September 2015, I wrote an article on how to extractflow data from a transect in a 2D area. This was a round-about way of getting flow flux data out of RAS Mapper. Back then the beta version of HEC-RAS 5.0 was somewhat limited in the ways data could be extracted from a 2D […]
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.
The new and improved RAS Mapper interface in HEC-RAS 5.0 makes managing and exporting model results like an inundation extents shapefile or a depth grid for use outside of HEC-RAS/RAS Mapper easy. The process (which is described in detail in Chapter 5 of the HEC-RAS 5.0 2D Modeling User’s Manual) requires the user to add […]
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: https://drive.google.com/file/d/0B0bpiyLiUeRXTy1pdUNralMzZ1U/view?usp=sharing (207 MB, Installation package without example problems) https://drive.google.com/file/d/0B0bpiyLiUeRXNGllMlE5V1dmQmM/view?usp=sharing (538 MB, Installation package with example problems) This new […]
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 […]