file Seiner_Str-Uns.cgd

zone 1
 boundary u7
  arbitrary inflow
 boundary u8
  viscous wall
 boundary u9
  viscous wall

update

zone 1
 boundary u1
  inviscid wall
!   connected to zone 1 boundary u6 rotation center 0 0 1 angles  10 0 0
 boundary u6
  inviscid wall
!  connected to zone 1 boundary u1 rotation center 0 0 1 angles -10 0 0

update

exit