Hello all, we made a stone masonry wall in our laboratory (shown in the picture). in order to obtain u-value of the wall, I want to conduct a thermal simulation of it in THERM software.The volume ratio of stone to mortar is 83% to 17%. I wonder if it is possible to simplify it in the THERM software as shown in the picture (with the exact percentage of stone to mortar)? If not, Which software can I use to perform the simulation?