How to incoporate volume change of Phase change material during melting and solidification due to density change.

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Dear all,

I am seeking guidance on how to effectively incorporate the volume change of PCM into my comsol model, as the PCM undergoes a volume change of approximately 12 to 15% during solidification and melting. Additionally, I am interested in visualizing the effects of this volume shrinkage and expansion during the phase transition.

Thank you for your assistance.


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