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Hi

I just want to simulate simple inflow and outflow steady-state conditions in a lake flow. But I'm repeatedly getting errors of boundary conditions. I tried possible ways to fix it but could not. I have two sources of inflow and one entry of outflow as shown in the picture. Please kindly comment if you can see the issue and how to fix it.

All files are attached here for your reference please




Error
ITERATION 0 TIME: 0.0000 S
TELEMAC2D INITIALIZED
DEBIMP: PROBLEM ON BOUNDARY NUMBER 1
GIVE A VELOCITY PROFILE
IN THE BOUNDARY CONDITIONS FILE
OR CHECK THE WATER DEPTHS.
OTHER POSSIBLE CAUSE:
SUPERCRITICAL ENTRY WITH FREE DEPTH
IN THIS CASE, GIVE A POSITIVE DEPTH
IN THE INITIAL CONDITIONS
OR PRESCRIBE THE DEPTH AT THE ENTRANCE.

Hello,

It is a classical issue when you try to prescribe a boundary condition with no water. If you increase the initial elevation (e.g. to 142.2 m, your computation runs. If it does not satisfy you, please use the search feature of the forum and you may be able to find other solutions.

Hope this helps,

Chi-Tuan