heat trasfer
 

Hi everybody,

after meshing the geometry using Gambit i wante to compute a heat trasfert from a solid to a fluid. The fluid is passing through a series of fins heated by 2 heating resistances. I don't know how to impose the heat flux because i tried using shell conduction and imposing the heat flux on the faces of the resistances but, between the blocks composing the base, the heat doesn't propages.


thanks for the help

here is a picture of the heat exchanger
http://img251.imageshack.us/img251/1048/image3o0.jpg