open TELEMAC-MASCARET The mathematically superior suite of solvers

I'm stuck here.

I'm running a test analysis for the tides in an inlet on the coast of Maine, but the results show no water inflow into the inlet.
The inlet runs north/south, but the results just some east/west flow at the boundary.
This place has pretty large tides, so there should be flow into the inlet.

Any help would be greatly appreciated.

Hello

I think that your problem is due to the bathymetry.



It ranges from 10 to 19 m, whereas I think it should range from -19 to -10 m. Probably you are simulating a mountain, not a channel.

Best regards,

Phelype

I'll redo all that and see what happens.

I also attached my bathymetry file (.xyz).
In the Blue Kenue tutorial, the Z is given as a positive, not a negative.

.xyz file zipped.

It is indeed, but what I meant was not the actual value of the bathymetry, since you can impose the free surface at arbitrary heights (P.S.: Check the value of the free surface height you are imposing to see if it is not below the minimum bathymetry).

The problem is that the overall shape of your mesh is not that of a channel.

So, creating the bathymetry anew, I should have all the Z components negative (inverting the mountain and creating a channel) (I'm keeping 0 as the sea-level height of the water).

I was confused, thinking Z is positive in the depth direction (towards the center of the earth).

I recreated the mesh and .slf and boundary conditions.

Analysis seems to go off the rails around Time Step 3.

Can anyone weigh in on this?

Thanks,
ME

OK, I've decreased the time steps to 30 seconds each and tried to maximize the efficiency so that it converges quickly.

It still takes like, 30 minutes per load step and crashes after the second or third load step.
This is a tiny mesh. Why does it take so long to run and what's going on?

Adding another picture of the printout.

Hi
The computation takes a long time, not because of the computation but because of the writing of the result file;
I suppose it's became very huge when you decrease the time step...
Try to change the period of graphic printouts and the computation will speed-up.

I advise you to read carefully the manuals available in order to well understand all the tricks behind some keywords.

Regards