I’m having an issue on a 1D, steady-state model. When I run the model in 5.0.3 (for 5 different recurrence intervals) I have one profile that crosses and defaults to critical just upstream of a culvert.
When I run the same model in 4.1 (same geometry and flow), there is no crossing profiles and the program is able to compute a WSEL for this profile that was previously defaulting to critical. Has anyone else come across an issue like this? Is there a difference between how 4.1 and 5.0 are calculating flow through a culvert?
Thanks