eugenio benedetti

Hi Sampat, thank you so much for your reply
I alway clear my generated data :)
I don't have any error. The simulation reach the iteration limit and do not converge.
Today I tried with a smaller heat flux. In the picture there's 1W on face F, I tried with 0.01W and it works. So maybe it's because the power out is much higher than the power the radiation can give.
I tried also with 0.05W and I had negative temperature in Kelvin.