Thermal bridge

Hi,

I study thermal bridge during my internship and I try to simulate basics thermal bridges like a training session. I'm blocked in a final analysis after modelling.

I don't know what expression I should use to calculate flux then the thermal bridge at the angle : "normal total heat flux" or "heat flux, x component"... I don't know also where i should calculate this flux.

I attach 2 files from my simulation in Comsol and the other one is an extract of a benchmark (RT2012 in France). I should find Psi = 0.03 W/m.K but i'm far from it.

Sincerely