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Reply To: Problems of Resolved Particles with Periodic Boundary

OpenLB – Open Source Lattice Boltzmann Code Forums on OpenLB General Topics Problems of Resolved Particles with Periodic Boundary Reply To: Problems of Resolved Particles with Periodic Boundary

#8905
jan
Participant

Dear yueyq,

Without having the specific details of your code, I can only make assumptions about the issues you’re facing. Here are a couple of points to consider:

1. It’s possible that you’ve defined the solidBoundaries incorrectly. Ensure that the solidBoundaries are not set for the entire surrounding part, but only for the single wall at the bottom of the container. Updating this might resolve the issue with forces being exerted by the left and right boundaries.

2. Double-check how you’ve set the periodicity. Also, incorrect definition of the walls might cause the force from the wall contact to override the forces from the fluid. This could be the reason why there’s no momentum exchange between the particle and the fluid after the particles leave and re-enter the domain.

I hope these suggestions help you resolve the issues in your code. If you need further assistance or have any other questions, please don’t hesitate to ask.

Best regards,
Jan