open TELEMAC-MASCARET The mathematically superior suite of solvers

I used Mascaret to simulate the flood process. A gate was set on the downstream section of the river. The bottom elevation of the gate is the river bottom elevation. Why is there a calculation error? No gate is set, and the calculation is normal. I am using the gate to simulate the process of flood discharge from the dam. thanks

Hello,

You can't put a singularity at the end of a branch. Singularities must be between the first and the last profile of a branch.

Sorry for the delay.