I've been having some problems with forming a structured mesh around a building; the domain is inside and outside the building. The geometry was sliced using the building faces, then meshed with Ansys Mesher. The mesh specifications were as follows:
Global Mesh: Adaptive, 200mm element size
Multizone, Hexa. program controlled.
Body sizing: sphere of influence, 10 mm
As shown in fig.1, the mesh was gradient from the center to the outer domain faces except for the backward region.
So I sliced the backward region so the backward region is at the same distance as the front surface from the centre (fig.2, 3). The mesh behind the center (building) was refined, yet the rest of the domain was still uniform.
I will be gratefull for your support. Thank you.