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TOPIC: Telemac2d calibration

Telemac2d calibration 14 years 7 months ago #109

  • fezai
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Bonjour,

j'essaie de modéliser la circulation dans une lagune qui possède deux communications avec la mer.
je dispose de mesures des niveaux d'eau sur une durée de 24 heures (deux cycles de marée).
j'arrive à reproduire la circulation dans la lagune avec les deux cycle de marée (entrée et sortie d'eau) sauf que les débits calculés par Telemac2d sont de l'ordre du 1/10ème des débits mesurés réellement pendant la même période de mesure des niveaux d'eau au niveau des deux communications de la lagune.
Je voudrai en savoir plus sur les paramètres de calage dans Telemac2d.

Merci d'avance.
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Re:Telemac2d calibration 14 years 7 months ago #138

  • sebourban
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Fezai,

It would be nice if you could share with us your files (all necesseray file to reproduce your simulation). You can zip them all and attach them here.

It will allow to see why you would have such a strange result on the discharges.

Without having seen your files, my initial thought would be that your friction is not correct (you have non-physical values for the friction law chosen), or that your turbulence/viscosity in not correct (you are working with mapple sirop instead of water ;) )

Sébastien.
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Re:Telemac2d calibration 14 years 7 months ago #154

  • fezai
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Hi,

I'm sorry to not have answered so quickly, I still have some details to fulfil in the mesh quality and boundary conditions.
Then I will get back to you with the complete simulation data as soon as I can.

Fezai.
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Re:Telemac2d calibration 14 years 5 months ago #185

  • eliseboyenval
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Hi,

I'm trying to use the parameter estimation function of Telemac.
I have at my disposal elevation measures at several points of the domain and I would like to program it in the subroutine named 'mesures'.
However, I looked at the training files, the telemac documentation and at the subroutine but I still do not understand how to code it (I just know that i need to enter measured velocities and heights, as well as the corresponding weights (ALPHA1, ALPHA2 and ALPHA3), but i do not know in what shape).
Therefore, I would like to know if there is a model available to help programming the measured data in the subroutine.
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