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your boundary file is wrong
you have 5 5 5 on the upstream and downstream boundary

Hello.
Thanks a lot for your response.
I am already using a hotstart, and the discharge at the downstream boundary is not zero. Still, the downstream boundary water level takes on the first value of the stage-discharge curve after a few time steps, and stays there for the rest of the simulation.
I greatly appreciate any further help.
Regards
Roberto

But did you change the boundary condition file from 5 5 5 to 5 4 4?
Water level + discharge is not the good combination for stage discharge curves.

Regards

Good morning Christophe.
I think we have a small mixup...There are questions from two different people (Stefano and I) in the same thread =)
My conlim file is 455 upstream and 544 downstream (my files are in post # 11380).
As I said, the problem is that the downstream boundary takes on an imposed water level, and stays at this value for the rest of the simulation, instead of using the stage-discharge curve I provide.
In the cas file I have PRESCRIBED ELEVATIONS=0;0. I'm not sure if this is correct.
When the model starts running, I see the full stage-discharge curve in the listing (attached image)

Best regards
Roberto

Sorry for the mistake

I'm not sure but reading the telemac dictionary file, I see that STAGE-DISCHARGE CURVES is an integer, not an array so in your case, I suppose that only the first value (0) is considered which means "no stage-discharge curve" and the the water level of your steering file is applied.
As there is only one option for the moment, you could remove this keyword or just give the value 1 if you prefer

Hope this helps

Hello,

Your two liquid boundaries are given with conditions 5 5 5, i.e. depth and velocities prescribed, is it what you want ?

When you have the keyword PRESCRIBED ELEVATIONS, it supersedes the value given in the boundary conditions file, so the depth prescribed as 1. in your boundary conditions file is overwritten by a free surface elevation of 0. for the boundary 1., this is probably the origin of your problem.

Regards,

Jean-Michel Hervouet