open TELEMAC-MASCARET The mathematically superior suite of solvers

Hi all!

I wonder if someone has already implemented a method allowing to dynamically prescribe a tracer value at a given source point based on a tracer value read at a given reference mesh point at previous time-step? This to model time dependant fluctuations of a given tracer in a intake/outlet system.

I tried to search on the forum but did not find anything. Any guidance regarding which subroutine is to be amended is highly appreciated!

Thanks in advance,

Kind regards
PL

Hi Pierre-Louis,

In the Telemac3D subroutine, you have to add the line below

TA_SCE%ADR(ITRAC)%P%R(1)=TA%ADR(ITRAC)%P%R(ISCE(I)+(KSCE(I)-1)*NPOIN2)

With ITRAC between 1 and NTRAC (number of tracers; Temp, salinity...)
I between 1 and NPTSCE

So in my example, the value of the tracer ITRAC imposed at the first source point is equal to the value of the tracer at the source point I.

Be carreful if you work in parallel you have to add a P_DMAX in order to collect the true value.

You have not all the answer, but you are on the right way
Don't hesitate to contact me if necessary, Regards

Salut Olivier!

Thanks, that's what I needed to know, I can figure out the rest of the implementation myself.

Note to the consortium: this would be a very nice new feature to add as a standard function

Kind regards
PL

PS: Hope you are doing well!