open TELEMAC-MASCARET The mathematically superior suite of solvers

Hi all,

I'm new to computer modelling and telemac. I am doing degree thesis in modelling hydrodynamic in a project site. I'm now trying to calibrate velocity magnitude with the field velocity data. However, I get a very bad calibration. Here i attach my steering file and calibration figure. I try to play with the friction coefficient but still cannot get good calibration. Is there any other suggestion or there is any mistake that i made?

Dint have any suggestion for dummy?

Hi
Hard to say without any other information.
It seems that you simulate tides but no inforamtion about the location, the extension of your model, the boundary conditions ...

you should give us more details.

Regards

Hello Christine,

I had done a rather long answer on Monday but it seems to have been lost.

I proposed a few changes to your parameters, mainly to move to the wave equation option, plus minor changes:

TREATMENT OF THE LINEAR SYSTEM : 2
SOLVER : 1
SOLVER ACCURACY : 1.E-6
IMPLICITATION FOR DEPTH : 0.6
IMPLICITATIO FOR VELOCITY : 0.6
SUPG OPTION : 0;0
COMPATIBILITY OF FREE SURFACE GRADIENT : 0.9

but I agree with Christophe C. that the main problem is probably the boundary conditions.

Do you prescribe depth, velocity or both ? You do not use the Thompson boundary conditions (OPTION FOR THE LIQUID BOUNDARIES), which would be helpful if you prescribe both depth and velocity (in this case your problem is not well posed).

Last remark: what are the measurements? are they depth-averaged 3D measurements ?

I hope this helps,

Jean-Michel Hervouet