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Reply To: Bounce Back Boundary conditions and lattice nodes locations

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#6006
ramirofreile
Participant

Julius,

The fact that in AdvectionDiffusionBoundariesDynamics for D3Q7 we set the missing populations by T difference = dirichletTemperature - (T) 1 - sum; makes me think we are at a wet node. Also, for D3Q19 a bounce back of the non-equilibrium populations is done, like the Zou-He wet node BC approach.

While it is true that the supergeometry is created before the boundary conditions and the nodes locations are not influenced by this step, if there is a deltax/2 of difference between lattice node locations the coupling between the lattices could be affected.

I may be missing some details of the code..

Thank you,
Ramiro