I want to simulate the phase change of an PCM. The system is composed of two concentric hollow cylinders whose annular space is filled with phase change material. Hot smoke passes inside the small cylinder thus heating the PCM.
I think, ANSYS Fluent is the best to solve phase change systems. This may be helpful for you: https://www.youtube.com/watch?v=zWEybW2vUOo&t=33s
To simulate PCM, Ansys FLUENT is by far the simplest software to be used.
The physics that you will active (on the left in Ansys FLUENT tree) are:
-laminar flow (you can also set turbulent models as well)
-energy (to ON, to account for temperature change)
-solidification and melting (to account for phase change; about mushy zone parameter see PCM literature, there are full studies on the effect of this parameter of CFD simulations' outcomes)
Best regards,
AP
Researchers used to simulated PCM with Ansys fluent but if you want to this in comsol you could activate the phase change in heat transfer section(you can use both heat transfer in solids or fluids or at the same time) at the heat transfer section in left setting panel you can right click on the solid section or define another solid or (fluid " Depends on your problem") and choose phase change from there...another additional settings are highly dependent the PCM you choose and, use the latent heat and the melting temperature of the phase change material you want to define.
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