open TELEMAC-MASCARET The mathematically superior suite of solvers

Good Morning!

I've been working on a sediment transport model in which I coupled Telemac-3D with Sisyphe. However, it seems that Sisyphe doesn't do the calculation in 3D because it only gives depth averaged results. I have 6 layers in my Telemac-3D model but I only got depth averaged sediment concentration in Sisyphe. Can the Sisyphe do the calculation in 3D like Telemac-3D?

Thanks in advance!

Best regards,
Qilong

Hello,

Actually in case of coupling between Telemac-3D and Sisyphe Telemac-3D does the evolution of the suspended sediment and Sisyphe does the bed load transport. So you can see the sediment concentration in Telemac-3D 3D results.

With best regards,

Jean-Michel Hervouet

Hi
Sisyphe is a 2D code. It could use 3D hydrodynamic results but it cannot produce 3D results itself.
To obtain 3D sedimentological results, you should use the SEDI-3D module which is include in telemac-3D. But this module require an important involvement in the fortran.

Regards

Hello,
we are planning to include a full 3D example for suspended sediment transport for the next release of the Telemac system.

regards,

Pablo

Hello,

Thanks Jean-Michel, Christophe and Pablo.

How can I see the sediment concentration in Telemac-3D 3D results? I have added the option "CSi" to the VARIABLES FOR 3D GRAPHIC PRINTOUTS in Telemac-3D but it didn't work.

I found a subroutine SED3D.f in Telemac-3D instead of SEDI-3D module. Is it the same module you mentioned before? But it only calculates the mass balance and doesn't solve the suspension in 3D.

Best regards,
Qilong

Hi Qilong,
to complete Christophe's comments, sedi-3d is a bunch of subroutines that solves 3D sediment transport. Variables like concentration, for exemple are printed as additional variables to the result file.
Soon I hope I'll have a "clean" and tested version for the next release of the Telemac system (I'll let you know).

regards,

Pablo

Hello,

You have also the test-case "016_Rouse" which tests a Rouse profile of sediment, and shows how to add a tracer which is the sediment, how to give the settling velocity, etc.

However it is in French...

With best regards,

Jean-Michel Hervouet

Hello,

I'm looking forward to the new release.
Meanwhile I'll look at the test-case "016_Rouse".
Thanks a lot!

Best regards,
Qilong

Hello Pablo,

I have upgraded to the new release (6.2) recently. I'm wondering if the sedi-3d module is available in this version?

Best regards,
Qilong

Hi
The subroutines dedicated to sediment computation are include in the telemac3d distribution (like in the previous version).

Regards