How to solve CFD analysis on heat transfer in a building wall using PCM
 

I need to do analysis for my project at school but have no experience on cfd analysis. I found an article what i need but no idea how to do it.

All i need is to make this analysis basicly and the graphs of temps that was at end of article.

Is there anyone help me to do this analysis or explain how to do it?

Article link https://iopscience.iop.org/article/1...3/1/012017/pdf