open TELEMAC-MASCARET The mathematically superior suite of solvers

I'm working on coupling Telemac-2D, GAIA, and NESTOR to simulate a dredging activity in a channel. My setup involves two sediment classes: one non-cohesive (in the bed) and one cohesive (only in suspension, not in the bed).

However, when I run the simulation, I encounter the following error:
A L A R M there seems to be mud !
Coupling of Nestor with mud is not realized
stop in SUBROUTINE NESTOR_INTERFACE_GAIA

Is it not possible to couple NESTOR if cohesive sediments are present in the GAIA model, even if they are only in suspension and not part of the bed composition?

Any insights or workarounds would be greatly appreciated.

I tried coupling the NESTOR with TELEMAC 2D rather than in the GAIA cas file. The simulation ran without any error. Since I am doing only a dredging operation, i.e., just lowering the bed elevation at some locations, is this method appropriate?

I would highly appreciate expert advice.

Thank you.

Hi Ravi,
nestor is mainly developed in BAW. We never tested nestor with mud. But we guess that it could be possible without changes at least for simple cases. If you remove the STOP in nestor_interface_gaia.f you can try.
Wish you look
Best regards,
Rebekka

Thank you Rebekka. I was able to run the simulation with Cohesive sediments. This time I couple the Nestor in TELEMAC 2D cas file and not the GAIA cas. It did not show any error related to mud/cohesive sediments described in GAIA.


I hope this method is appropriate. Please let me know your views. Thank you again.