Multiple Opening Analysis
Did you know that if you have a bridge opening and one or more culverts at a single river crossing a Multiple Opening Analysis is required?
Our agenda will cover unsteady flow, level pool versus dynamic routing, breach parameters, setting up a dam breach model, diagnosing and fixing dam breach models, and presentation of 1D and 2D case studies. Hope to see you there!
Comments
Krey Price
on December 29, 2016A long read, but here's an article that helps to put the dam breach courses in perspective:
http://www.newyorker.com/magazine/2017/01/02/a-bigger-problem-than-isis
Chris Goodell
on December 29, 2016Great article! I've been following Mosul Dam for a while now. In fact it was th first 2D HEC-RAS model I ever built. Scary to think what. could happen there.
Ross
on July 13, 2017Hi Chris- I am using HEC-RAS v5.0.3 to do a 2D dam breach model. The model is strictly 2D except for the dam itself which is modeled with a Storage Area Connection as Weir and Gates.
In a 1D Dam breach the User can 'Plot Cross Section' and watch an animation of an Inline Structure/ Lateral Structure (see floodwave come through and gates open or close). I've used this to check that my gates are functioning the way I want. However I can't seem to find an animation viewer like this for a Storage Area Connection. Does such a viewer exist? If not, it seems like a feature HEC should add.
Chris Goodell
on July 13, 2017Hi Ross. Unfortunately that kind of viewer does not exist in the current version of RAS. Hopefully in the next version!
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