Subashni Ravichandran
Ansys Employee

Hello dirk. linnenbruegger

I understand the difficulty you are going through. 

I opened the heatsink alone in a new file and I was able to simulate with it.


Cutting the heatsink manually from the 'Volume' component is the only workaround I can think of.

I have shared your model with the team. I will get back to you as soon as I hear from them.