Reply To: Turbulence in closed space
thanks for posting.
I am not quite sure if I understand your setup correctly.
Could you please attach a paraview screenshot which visualizes the geometry, or alternatively provide a little more explanation/code?
Anyway, a possible issue could be that the indicator doesn’t match the grid correctly.
Maybe have a look at the standard examples, where inflows and geometry primitives are used.
Please also note that we have a spring school coming up next year, where we could help you more efficiently with realizing your own simulation in OpenLB.