ANSYS 11.0 input for fan model geometry:

finish
/clear            ! start with an empty database 
/PREP7 
CYL4,0,0,3,0,75,30   ! use mm. for length units, make 30 deg. sector
wpoff,0,20,0
wprot,,90.0,
ASBW,all        ! slice sheet metal to make fin/blade
KWPAVE, 6 
wprot,,,90.00
CSWPLA,11,1,1,1,
AGEN,2,2, , , ,90, , ,0    ! create blade by copying small cut triangle
adel,2,2,1,1
csys,1 
agen,12,all,,,0,30,0     ! copy sector for complete fan
nummrg,kp          ! merge sector edges
WPCSYS,-1,0     ! move WP back to the origin
asel,s,loc,z,0      ! select all flat areas
aadd,all               ! add them together
allsel                    ! select everything
numcmp,all         ! compress numbers
csys,0                 ! activate Global Cartesion CSYS
IGESOUT,fan,iges   ! write out IGES geometry