[Shenren_CN]

I try to generate the all-hex mesh and have had the blocking done properly.

The mesh quality is very good is I set the edge to be uniformly spaced.

However, whenever I try to refine the boundary layer mesh with small y+,
by setting the edge pre-mesh params to a small length on one end and
use geometric growth for the edge, and then COPY THE PARAMETERS
TO ALL PARALLEL EDGES, the resulting mesh always have negative vol
cells.

I suspect it is because that the PARALLEL EDGES all have (slightly) different
length, and thus I don't know what really happens when the PARAMETER
for one edge is copied to the rest.

Has anyone experienced the same issue, and any suggestions on how to
resolve this?

Cheers,
Shenren