No heat transfer within part

[mageldai]

Hello,

I have an annoying problem with my heat transfer results. I have a deformable die part where there is a cooling channel integrated within. I defined the channel and the rest of the die as two sets and used predefined fields to define different temperatures for them. I also used one simulation with a dynamic temperature-displacement and one with a coupled temp-displacement.
Also I set the thermal coefficients for both materials (die and billet) like conductivity, specific heat and expansion.
Nevertheless, at the end, when I view my results there is no temperature change within my die (heat transfer between billet and die seems to work). More importantly it never shows me the temperature I set for my channel...
What am I missing or doing wrong???

Thanks in advance.

Regards

mageldai

 

[corus]

If you have no boundary conditions or gap conductivity in contact then there is no heat transfer.

 

[mageldai]

Thank you for your reply.
Why should I use boundary conditions when I already used predefined fields? Are boundary conditions not fixed properties which won't change during the simulation?
Also what exactly do you mean with "gap conductivity"?