open TELEMAC-MASCARET The mathematically superior suite of solvers

I my model, there are two boundaries, one is in strait and is prescribe by TPXO, and the other is a river which I desired prescribed by Q time series in a liquid boundary file. I this case, I found the the Q and tracer in liquid file did read by the program and the tidal elevation in first boundary did not prescribed correctly. I post the .cli file, liquid boundary file and the steering file. Could any one help me check the mistake in my case?

Hello,

If you want the LIQUID BOUNDARIES FILE taken into account by TELEMAC-3D, you have to fill in the 2 keywords PRESCRIBED FLOWRATES and PRESCRIBED TRACERS VALUES with at least 2 values for the first one and 4 for the second one (contrary to TELEMAC-2D).

FYI, with a liquid boundary where you prescribe elevation (the 2nd one in your case), you do not need to fill in the column with Q(2).

Hope this helps,

Chi-Tuan

Dear Pham
Thank you for your reply. These problems have been resolved. However, I encounter another problem. Now I am try to read a time and space varying wind and pressure into Telemac3D. I referred to the document finding that it is need to modified the user-fortran METEO.F. I found a example in wind_XY. But I still cannot make sure the varibles meaning and usage of them. Could you give me some instruction on the user fortran programing?
Best

Hello,

What about your input file for wind and pressure? Do you have data at every node of the mesh or a few locations? Do you have files written in ASCII or binary?

I would suggest you to start with data similar to one of the telemac2d/wind_txy example (the one more similar) and then adapt it to what you want to do, step by step.

Hope this helps,

Chi-Tuan

Dear Pham,
Thank you again. I have gone through the wind_txy example. But I have two questions. The first one is that whether the meteo.f is calculated every time step and the wind field data is read more than one time? I have noticed the 'save' word in the this subroutine. But I still have this question. The second one whether its usage in Telemac3D is similar to that in Telemac2D? I noticed the there is subroutine called IDWM_T2D used in Meteo.F. I wonder if the IDWM_T2D is effect in telemac3D?
Hope your hlep.
Best wishes.

Hello,

Subroutine METEO is called at every time step. In the METEO subroutine provided in the Fortran file of wind_txy example, the wind filed data is only read once at the 1st time step.

IDWM_T2D is a subroutine only provided in the Fortran file of wind_txy example, it is not used in standard TELEMAC-2D nor standard TELEMAC-3D. It can be used either in TELEMAC-2D or TELEMAC-3D as soon as the input arguments are OK as METEO subroutine.

Hope this helps,

Chi-Tuan

Dear Pham,
I have one more question. I have finished the modification of the fortran subroutine Meteo.F. But I found the mesh used to interpolate the xy-wind filed is in projected coordinate. My wind field is in geological coordinate. I wonder if How to projected the wind filed data into projected coordinate. Is there any subroutine provided by Telemac that I can used to accomplish the goal? If the answer is not, I think I have to change my temporal-spatial varying wind field into a projected using other program such as ArcGIS before fed to Meteo.F.

Dear Pham,
I am turning to you again. In my case, all the data including wind field data is in Longtitude/Latitude. I found the coordinate use to interpolation in Meteo.F is Cartesian coordinate. I want to how to set the steering file to make sure the all the calculation and interpolation are in longitude/latitude with the Coriolis force is calculated automatically using the latitude supply by input file.
I attach my steering file. I think the key it related the keywords such as
SPHERICAL COORDINATES = YES
SPATIAL PROJECTION TYPE = 3
GEOGRAPHIC SYSTEM = 1
RESULT FILE IN LONGITUDE-LATITUDE = YES
ZONE NUMBER IN GEOGRAPHIC SYSTEM = 50
Could you tell me how to set them to achieve the goal?