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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 they had included my method and Kopsky’s method),
- Estimating dam breach characteristics, including some of the newer erosion process models,
- Downstream flood routing/Modeling issues. For those of you who have or have had troubles with stability while trying to route a dam breach hydrograph, this last section will be very helpful.
You can download “Using HEC-RAS for Dam Break Studies” from the HEC website at http://www.hec.usace.army.mil/publications/TrainingDocuments/TD-39.pdf
from my Google Drive site at: https://drive.google.com/file/d/0B0bpiyLiUeRXSHpCR2s4RjdCeFk/view?usp=sharing