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Reply To: Periodic Outlet Boundary Conditions ( nonequilibrium extrapolation method)

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› Forums › OpenLB › General Topics › Periodic Outlet Boundary Conditions ( nonequilibrium extrapolation method) › Reply To: Periodic Outlet Boundary Conditions ( nonequilibrium extrapolation method)

December 7, 2023 at 11:22 am #7993
jan
Participant

Dear Rookie,

I just wanted to quickly inform you of a possible problem:
The hardcoded material number in the code you provided is 2. Usually 2 corresponds to a wall, but in my opinion the periodic boundary should consider the fluid, which usually has the material number 1.

However, I don’t know your case, so this is just a guess and depending on your setup, both material numbers (1 and 2) could work and possibly give the same results.

Best regards,
Jan