[Geetanjali]

Hi, i am simulating an enclosure with 2 fans, a few heat sources on a heat sink and a few components placed on the PCB. I did all the necessary boolean operations. I kept getting failed mesh due to overlapping connections. So to solve it, I added components to a new part and increased the tolerance of contacts.
In fluent,
I used the transient solver with k-epsilon model with std function,
Assigned source term to bodies,
Mesh motion to the rotating domain,
Pressure inlet with 60 deg C temperature and a pressure outlet,
In mesh interfaces, I added coupled wall,
SIMPLE model with 2nd order discretization

The solution keeps diverging. I am unsure if it is because of the mesh overlapping connections or fluent settings. Any help would be great. Thanks.