urgent!! Need help
 

Hi i am currently a new user here. I having some problem on the ansy. When calculation the result i will get reverse flow and also limiting temperature. But i dunno when i has dun it wrong? the meshing problem or my geometry got problem? if i cut off the upper part of the geometry it can been calculated.
here i attach come picture of my geometry and result.

hope that some 1 here can help me to solve the problem.
http://www.facebook.com/album.php?ai...00498196&saved

i do not know how to attach picture here. Can view my picture on
http://www.facebook.com/album.php?ai...6&id=600498196http://www.facebook.com/album.php?ai...6&id=600498196