If you are using Multizone for 2D and want quad then please select 'All Quad' under Free Face Mesh Type.
Plus it is not clear if you are using inflation or edge biasing.
You can use inflation control to get boundary layer.
If it is all mapped mesh then edge biasing will also help.
Please go through help manual for more details
Please check following videos
Ansys Meshing Sizing:
Ansys Meshing: Meshing Methods:
Ansys Meshing: Inflation:
Regards,
Keyur
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