open TELEMAC-MASCARET The mathematically superior suite of solvers

Hello M. Hervouet,

I changed the fortran file as you've suggested. But I still have my problem about the deposition. What you asked me to add, would limit the bottom to rise up more than the 0.0 m elevation ?

About the tidal flats, I think I've set the right option for them... I have attached to this post the case files of Tomawac, Telemac and Sisyphe, if you want to take a look...

Why do you think it could come from the tidal flats ?

Regards,

Rémi

The files:












Regards

Dear Rémi,
Could you please send also the file "resTomawac-test3.slf".

Thanks,

Pablo

Hello Pablo,

resTomawac-test3.slf is the result file of TOMAWAC simulation, and it is quite big (300 mo), so I uploaded it on FileZ. I hope you can download it.

filez.nicecotedazur.org/ps5cayj

PS: The geometry file that I gave to you is only a small part of the my study domain. But I have the same deposition problem on this portion...

Regards,
Rémi.

Well received,

We are investigating the case, but so far in scalar mode and with our latest version 6.3 it seems to work without any error message.

Pablo and JMH

Ok,

Well it's running but when I check my Sisyphe result file, I have something like 8meters of deposition on the sea side boundary (with my version of Telemac and in parrallel ) ...

Anyway, thank's a lot for your help,

Rémi.

Dear Rémi,
Based on your latest post, it seems that now is working also for you.
We analysed your problem and it seems that your evolution of 8 meters has a physical meaning, because in your bathymetry you have some zones that are being filled by sediments. Furthermore, these zones present a very abrupt slope (see figure attached)

I hope it helps

all the best,

Pablo & Jean-Michel

Dear Pablo and Jean Michel,

You're right it looks physical. So you're saying that because of the bathymetry, the sediment is rolling down the slope.
But there are some points that I still don't understand:
-I've set my LIEBOR boundary limit to 5 with IEBOR=0.0 (=zero evolution imposed). So I should have 0 evolution on the boundary but these changes are happening at the boundary.
-When I'm using the full-domain (third post and picture),(if I have well understood) my deposition is reaching 190 m because a big amount of sediment is getting down the slope. But it does not seem as physical as previously (pictures)... it should stop when the "holes" are filled. Then I thought that may be I should open LEBOR boundary (=4). When I'm doing that I'm getting back to "the negative depth prescribed on the boundary" error .



PS: I runned the full domain model with exactly the same parameters...

All the best,
Rémi.

Hello Pablo and Jean Michel,

I think, I finally understood what happened in my model. When I'm using the full domain geometry file, it seems that the bottom evolution at the boundary is changing so that the water depth is reaching exactly 100 meters on the sea side of the studied area.
I wanted to be sure of that; so I changed my geometry file, I reduced the initial domain to have a bottom which is not getting down more than -100meters. I had only one zone for which the bottom was -117m. When I run my Sisyphe model the maximum evolution that I had was 17 meters (see picture). And this evolution was situated at exactly the -117 m bottom zone. Near the boundary the other evolution values was zero.

Is there any limitation of water depth on Sisyphe or with some BED-LOAD TRANSPORT FORMULA (=4 in my case) ?

Regards,
Rémi

Hello,

There is no limitation of water depth, but 100 m is the default sediment layer set in noerod.f, maybe it is a hint to understand what happens.

JMH