open TELEMAC-MASCARET The mathematically superior suite of solvers

Hello,

In the ARTEMIS paper, I don't understand what a match the following terms: "COTE NULLE, "COTE CONSTANTE" and "HAUTEUR CONSTANTE"...

When the bathymetry off my study area is 10 meters, I use the following code: "COTE CONSTANTE" "COTE INITIALE : 10".

So, I think it's wrong isn't it?

Thank you very much.

Hi Dufour

The basis is the following:
Your bathymetry (B ) is fixed. In the most case, you give a relative value to a reference (mean sea level, lowest level, ground level).
In the initial condition, you choose to set the water heigh (H) or the level of the free surface (S).
In all case you had the relation : S = B + H

"ZERO ELEVATION" ("COTE NULLE") ==> S=0
"CONSTANT ELEVATION" ("COTE CONSTANTE")==> fix the value of S
"ZERO DEPTH" ("HAUTEUR NULLE") ==> H=0
"CONSTANT DEPTH" ("HAUTEUR CONSTANTE") ==> fix the value of H

When S is fixed, H is computed to satisfy the previous relation with a restriction when B>S then you have S=B and H=0.
When H is fixed, there is no restriction but if B isn't constant, that generate some variations on S which could be not physical.

I hope it helps

Regards

Christophe

Thank you very much.

So if I understand it, when the elevation of the sea is 1m (due to a storm or sea rise level for example), I chose the following code: "CONSTANT ELEVATION : 1"

Regards

Not exactly
In the keyword INITIAL CONDITION, you choose CONSTANT ELEVATION
And in the keyword INITIAL WATER LEVEL, you enter the value 1

Hope it helps

Ok, I understand...

Thank you very much for your help!

Regards.


Gaëtan