Hello;
I am trying to do a vacuum dust suction simulation with the model I show in the picture.

I have a suction in the center tube and an atmospheric inlet in the hole on one side. I have set that side hole as an atmospheric input, but when I start the simulation it gives me the following error:
"acuPrep: *** ERROR: ABL inflow found nodal coordinates below ground"
I have oriented the green arrow into the tank, but it still gives me the same error.
Someone knows to that can it be?
Thanks a lot