open TELEMAC-MASCARET The mathematically superior suite of solvers

I noticed in telemac3d, a subroutine for computing space-time varying settling velocity (as a function of temperature, salinity or sediment concentration) exists (COMPUTE_SETTLING_VEL.f). However, I could not find a similar subroutine for telemac2d. Is there such an option? if not, what could be the best way to implement it (where to call the new subroutine ? what are the important changes needed in other Fortran files?)
Thank you for your help
Regards,
Nithin

Hello Nithin,

for 2D you have the subroutine SETTLING_VEL (stored in GAIA) where the settling velocities are computed according to grain diameter but there are no options related to temperature, salinity and so on. What would you like to do exactly?

Best regards,

Sara

Hi Sara,

I like to compute space-time varying settling velocity as a function of sediment concentration in telemac2d. I was able to do it in COMPUTE_SETTLING_VEL for the telemac3d model. I would like to have a similar subroutine for telemac2d. Let me know how to proceed. Thank you.

Regards,
Nithin

Hello Nithin,

it is not so easy to answer, it depends also on which variables you need etc.
However here a generic way to do it: if you want to have a settling velocity which varies in time you could add your lines of code in the subroutine SETTLING_VEL and then add a call to this subroutine in the time loop of GAIA, so in gaia_step.F.

Hope it helps,

Sara