Periodic boundary condition
1) mesh
2) modify-zones
3) matching-tolerance
4) if 0.5, type 0.5
5) make-periodic
6) one boundary will automatically be deleted.
Number of mesh in boundary should be the same.
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Build 2D model by Solidworks -insert- planer
insert- planer
Save as parasolid: *.x_t
Ansys: msh,-import
Dynamic mesh boundary condition.