Mesh Regions in Disc Form

[Anonymous]

I deal with a lot of circular geometries and thus I need to use cylindrical regions to refine small passageways in the model, these can be as small as 0.3mm. Hence I have the main fluid body at roughly 1mm manual mesh, and refine the small gap at 0.1mm. I use a cylindrical region for this.

However I do not need an entire cylinder at 0.1mm, and it would be great if I could refine just a disc shape to alleviate the density of the overall mesh. This is bearable for static runs, but for transient studies with motion as well, the computation time is seemingly infinite.