open TELEMAC-MASCARET The mathematically superior suite of solvers

Hi,
I have been looking around the Telemac forum and searching the internet for some information on how to implement the TPXO boundary conditions for a tidal flow simulation.

So far, I have looked at the validation tests cases provided with the latest release, read the new releases information, looked at the TPXO.f source code and other articles.

So far my understanding (which is pretty poor) is that I am supposed to provide a geographic shape file into a subroutine that would extract the ascii database for the tides and a list of harmonic constants for the boundary (provided the coordinate system is known). I believe that once I knew how to get these files that the meshing and setting up the model should be fine.

Can anyone provide me with some guidance about where to look next to help me move forward?

Thanks in advance.

No replies so I will try re word the question:

How do I obtain the following files:

ASCII DATABASE FOR TIDE?
TIDAL MODEL FILE?
HARMONIC CONSTANTS FILE?

Hi spbristol,

I think your question may be answered in the following thread
www.opentelemac.org/index.php/kunena/16-...idal-model-with-v6p2

Regards,
Gourish

Hi,

Gourish is right. In the forum, there are two topics dealing with "TPXO" boundary conditions to model tides:
www.opentelemac.org/index.php/kunena/16-...ide-modeling-problem
and
www.opentelemac.org/index.php/kunena/16-...idal-model-with-v6p2
as already suggested by Gourish.
In particular, I can suggest you to read the paper from the proceedings of the TELEMAC-MASCARET Users Conference + the slides shown during the conference and the workshop that you can download in the post
www.opentelemac.org/index.php/kunena/16-...h-v6p2?start=10#6080

You can use the Search section specifically in the forum which is very efficient (same level as Index, Recent Topics, Rules), not the the Search function on the right just above the "Latest News".

Are you sure that you have already read the new features where the new keywords have been presented, in particular section "Databases of harmonic constants to force open boundary conditions"?
www.opentelemac.org/index.php/feature-lo...s-of-telemac-2d-v6p2

My last suggestion when you do not know so much about the keywords is to read the famous dictionnary file with the description of the choices and helps, as we often recommend in many posts (you should already have noticed that, for sure), in your case telemac2dv6p2.dico in the lib directory.

Then, you can have many hints to help you with TPXO (more exactly the tidal solutions coming from Oregon State University).

Anyway, what do you mean by "a geographic shape file"?
As you may read, ASCII DATABASE FOR TIDE and TIDAL MODEL FILE do not deal with the tidal solutions from OSU (TPXO-like). Moreover, these solutions do not need to generate or use any HARMONIC CONSTANTS FILE.

For your information, a manual about how modelling tides with TELEMAC in version 6.2 has been written but has to be approved. This French version is to be available in a near future and then translated in English, but I think that with all information of this post, you can do it by yourself as other users.

I attach the steering file of an equivalent test case for tidal solutions from OSU. The Fortran file is the same as for JMJ but without the tidal_model_t2d subroutine (the standard one is used).





Hope this helps,

Chi-Tuan