Problem in entering geometry and meshing for an airfoil in ansys fluent
 

hi.i am simulating a darriuse wind turbine with flaps in 2D by ansys fluent for thesis.
i have to consider a sub domain around each airfoil to creat a good mesh.i can not do it in design modeler beacuse of that i have to use split face and i am not able to use of split face (it is not easy).so i am creating the geometry by solidworks and insert it to ansys( DWG or STP format) but every time i have a new problem like my airfoils does not shown as wall in solution setting or the flaps does not shown/i can not able to define interfaces and so on. i do not know what to do?