Periodic BCs

[Henderson_C]

Dear OpenLB community,

When the particle is in motion, and and I apply periodic boundary conditions on the left and right, why the the other side of the domain is not effected. Please refer to the figure:
https://imgur.com/a/ttW6sPR

This also happens with pressure but not temperature.
Regards,

[jan]

Dear Henderson,

Unfortunately, I can’t provide you with a solution to the above problem because I don’t know your simulation setup. Here are a few things you might check:
– Is the periodic boundary applied correctly?
– Maybe also check the “geometry” in ParaView, in the direction of the periodic boundary the material should most likely be 1
– Compare your implementation with examples that use a periodic setup, e.g. Poiseuille2d, are there any differences?

For extensive help with your setup I suggest the Spring School: https://www.openlb.net/spring-school-2023/

Best regards,
Jan

[Author]

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