Using wind tunnel grading with butterfly, the boundary dislocation

grasshopper butterfly
1

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.

![001|690x492](
CFD simulation with Butterfly.gh (47.6 KB)

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001862×615 12 KB

2

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:

3

Thanks for replying!

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