Contact simulation Problem
 

Hi every one

Please help me the my problems

I have a problem in CFD Fluent simulation. I try to model the cooling simulation.
Please see the image and give me how to simulate the change of temperature interface between plastic and steel under effect of air cooling flow.
I also find the value of heatflux from CFD simulation with the given temperature of plastic and steel.
http://img850.imageshack.us/img850/8705/5sn1.jpg

With the best regard