Right-left handedness
 

Hi Fluent user, I did the mesh a periodic domain of a quarter of a hydraulic turbine. I check the grid in Gambit and all is good. When I read the grid in Fluent I receive the grid check error because two faces are left handedness. I use the grid-modify faces-repair face handedness and when I do the check all is o.k. Bur when I save the file and I reopen it I received an error for the grid and Fluent doesn't re-open the file. I would want to know how to repair the problem. Thank you very much to everyone Monica