Shaded surfaces of the various grid blocks. The picture shows the complexity of the case.

The figure shows a 9x9 and 4x4 array of H-grid cylinders connecting to a simple block. An irregular shaped and two cylindrical pipes (H-grid and HO-grid) also connect to the block.

Display of the GB2B zero cell overlap block interfaces.

Selected connectivities on face. Shows the full extent (regions) of connectivities.