Thanks for always being here. You are an excellent HIVE user. Here is the main concept which is interesting in my opinion because it concerns daily life and how we can lose less heat inside our home. I resume the main concept of this post below.
Considering a system consisting of a free wall, which we later add a curtain to, we can state the following. The two resistances G1 and G2 that form on the right and left of the tent represent the convective motions of the air on the two faces of the tent. These ensure that the thin layers of air present act as insulators