Mesh generation electronic passive cooling
 

I'm trying to create a mesh on imported file STEP geometry built with AUTOCAD.
I'm using the workbench application of Student Ansys Fleunt version 16.2.
I'm new in use of this software and I want ask you some help to make a good quality mesh for my geometry.
It consist in a natural convection / conduction problem. There are source of heat inside an enclosure filled with nitrogen. I simplify them with a cilindrical object (power supply) and a stack of electronic cards. These are put inside an alluminium chassis that is in contact with steel(housing).
The housing is also sorrunded by dielectric oil to improve cooling.

I'm looking for some advices in built a good mesh. I've tried with a tetrahedrons program controlled, with 100 of relevance but when I import it in fluent and I make the report quality, I notice that it is not so good.
I can upload my CAD file and FLUENT Progect.

I hope someone could help me!
Thank you guys!!:)

Mesh Expert
 

Hi,
Still you have this problem? Let me know, i can help you.

Regards,
sila