Has anyone had any experience with modeling a structure on the order of a triple 7' x 7' box culvert in HEC-RAS? I seem to have run across an issue with the program when trying to model a proposed 2,400'+ long version of the aforementioned structure for a project. We were tasked with needing to show the backwater effects for blocking one of the three, as crazy as that seems, and HEC-RAS was giving very unstable results, including a lower WSEL for the 100-yr than the 25-yr. It was defaulting to the Critical WSEL since it wasn't able to calculate a WSEL for the given circumstances; however, some troubleshooting revealed that upon shortening the culvert to approximately 1500' it gave reasonably accurate results. Anyone ever seen this issue previously?
Red Flag Submitted
Thank you for helping keep Eng-Tips Forums free from inappropriate posts. The Eng-Tips staff will check this out and take appropriate action.
Reply To This Thread
Posting in the Eng-Tips forums is a member-only feature.
PCB design is a purposeful process. In essence, every PCB design is a complex puzzle that requires a designer to incorporate critical components and tight schematics into a piece of technology that is governed by rules, constraints and industry standards. Download Now