3D Grid Refinement

I just noticed that a new version of PALABOS has come out today. But it seems that 3D grid refinement has not been included in it yet.

I was wondering if anybody has had success with 3D Grid Refinement.


i studying grid refinement in LBM but i can’t understand how to write it numerically. can you help me to write in 2d channel flow or to explain me more the principle of refinement in LBM
thank you for help