Gambit-GTURBO error message

mark

Hi, I'm working on building a flow volume around a high pressure turbine blade using GTURBO tool. I have 25 blades and i want to have almost 10 spanwise sections so i set these numbers on the "create turbo volume" panel and things go quite well excepts for this warning : "An edge on the volume resulting from the face stitch changes convexity. Its possible (but not likely) that subsequent operations with this volume may fail. If they do, then setting the GEOMETRY_VOLUME_SPLIT_AT_CVXTY_PTS_IN_FACE_STITCH default before the face stitch operation may be recommended." But when i define turbo zones i get this error message : "PRESSURE AND SUCTION FACES MUST BE SPECIFIED SIMMETRICALLY" and the operation fails. I tried to change the default option said in the warning but nothing changes. Things go on the right way only if i chose max 5 spanwise section, but for me aren't enough 'cause the blade bad geometry (strongly swepted). If anyone have found a solution to this probem or have a suggestion please help me !!!! Thanks a lot.

PS I use version 2.2.30 of gambit.