open TELEMAC-MASCARET The mathematically superior suite of solvers

hello,

In BlueKenue,what is the FREE SURFACE value?



Which reference plane is this value relative to? Sea level, chart datum or other datum

thank you very much if you can help me.

Hi,

FREE SURFACE is for "free surface elevation" if you prefer.

BOTTOM and boundary condition must be consistent with the chosen reference.

-> FREE SURFACE value is relative to the same zero than your BOTTOM and your liquid boundary.

thank you！I have another question，is the velocity average or surface velocity in bluekenue?

Is the FREE SURFACE value the tide level?

You are using TELEMAC-2D which is a depth-averaged model. As such velocities/currents output from the model are always depth-averaged. If you want surface currents you'll need to use TELEMAC-3D.

The free surface is exactly as per the physical meaning - the interface of air/water. If you're modelling tides then it'll be your tidal water level.