multi block approch in lmm

Lattice Boltzmann Method LBM: Theory
#1

Dear all
I worked on multi block method in lbm. I need som majer clue for data transfering on boundary interface. Can anyone give me some help and introduse the existance mthode in this way?
regard.

#2

multi-block for grid refinement is well explained in this review.

#3

thanks Mr. adam