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HI

I would like to simulate a flood in a river, I do the Mesh by Kenue blue, I used as a boundary condition in the downstream (the hydrograph of the flood (Q (t)) and in upstream the rating curve (Q (H)), the problem when I check the hydrograph after the simulation, in the resulat, I find a steady rate, I do not find the form of flood

in the attached file you find the case that I used and the comparasion between the measured hydrograph and the simulates one

thank you in advance

Hello,

You must do the contrary:

Hydrograph upstream, rating curve downstream.

Moreover it is recommended to start from a steady state solution with a discharge at the exit that is well the rating curve range.

With best regards,

Jean-Michel Hervouet