Hi, all, I am doing a unsteady flow analysis for a single reach river channel. With flow BC at the upstream and water stage BC at the downstream.
At the most upstream cross section, the model produces such a weird-looking rating curve.
-- First, why does the line is wangling like that (instead of being a single curve)?
-- Second, in general, it seems large flow corresponds to small water gauge. How does that happen?
-- Does that indicate some error with the model? (The computation window does n't give any warning or error).