Melting of a PCM and its influence on the air temperature
I have some issues with simulating the melting of a PCM. It's in a domain where there is a hot incoming air flow at 303K. The PCM is located in a copper tube. The temperature of the PCM is related to the temperature of the copper but the temperature of the copper is unchangeable, despite the increased temperature of the hot air. I initialized the simulation at 291K, two Kelvins below the melting point of the PCM. The liquid fraction of PCM does not form and its temperature doesn't change either. Can someone give me a hand, please?
The pictures represent last Timestep.