Using wind tunnel grading with butterfly, the boundary dislocation

Hi community,
As the attached file, when I plug the WTgrading to blockmesh, the boundary mesh shrink and dislocate away from breps.
I’m new here and it’s my first day with butterfly, appreciate some solution and explanation.

CFD simulation with (47.6 KB)

Hi Dasni,

I checked your model. You should check your geometry and units, I think that is mandatory to work with meters :wink: I gave a try and it worked :slight_smile:

Thanks for replying!

Yes, the problem is on the mode’s unit and dimension.