open TELEMAC-MASCARET The mathematically superior suite of solvers

Hello,

I am starting a simulation with Telemac coupled with Sisyphe, bedload only.
The elevations and velocities at the boundaries at assigned through subroutine bord.f
I would like to let the system stabilize before starting the sediment computation.
In coupled mode, is there an option for starting sisyphe later, say after 20000 time steps for instance?
I have found the keyword 'STARTING TIME OF THE HYDROGRAM' in the .dico file, but it seems to apply only for uncoupled mode.

Thank you for your help,

Caroline

Hi
Your request is not possible in theactual version of Telemac.
But you could easily have a solution by running first a Telemac simulation without Sisyphe for 20000 time steps.
The you use this result as a previous computational file to run a couple simulation.

Hope this helps

Hi,

Thank you for the answer.
in my case, it wasn't simple to start from a previous computational file since there were time-varying boundary conditions that needed to be read from the beginning.

In case it can help someone else, the solution I used was to add a line int the subroutine bedload_main to skip the sediment transport calculation as long as the absolute time was below a critical value (IF AT0 < Tcrit GOTO ...)

Caroline

Hi

You found a solution, that's the most important thing.
But as I said, i'm quite sure you could make a hot start.
If you use a previous computational file you're not obliged to reset the time...
So if you let the time at is real value, the boundary conditions should work without any problem...

Regards