Hello
We have been struggling for a while to use the RC curve for a very long culvert inside of a 2D modelling perimeter.
If we test the RC curve method on a small internal SA/2D Connection there is no issue and the rating curve works as expected.
Do I need to make use of a 2D-1D-2D setup to model the very long culvert, and using the 1D River for the RC curve/culvert?
I read up on the wormhole method but it does not seem to work, as I do not understand how to link the inlet and outlet using the RC Method, with a “standard” culvert it works fine.
If anyone has had luck with a similar issue I would appreciate any inputs, as we have run out of simple ideas.
We normally use Basement 3.2, but have decided to switch to HECRAS due to the easier pre-/post-processing of our models.
Cheers,
Sebastian