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Meshing one region with different cells

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Old   Yesterday, 07:12
Default Meshing one region with different cells
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Hi everybody,

I'm trying to mesh quite a simple geometry of a blade in a wind tunnel (see picture).
I want the area around the profile to be meshed with polyhedral cells, and the area away from the profile to be meshed with trimmed cells.

Initially, I've meshed the entire area with trimmed cells, but although the mesh was quite good, the flow was reversed for some reason...
When I changed the mesh to polyhedral, I got excellent results with excellent convergence behaviour, but I'd still like to use trimmed cells at the inlet/outlet regions.

I've built the channel as one part and assigned the different surfaces to regions.
I assume seperating the inlet/outlet regions into different regions could resolve my problem, but I can't seem to find a way to do it.

Help would be much appreciated!
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