I want to calculate the heating effect on the solar radiation through the window to the indoor air in an enclosure. I found in the manual that solar effect is only on the solid surface. How can I define that particular question? Is is nessary to turn on the "thermal radiation" and the "radiation" in the fluid cell type (air)?

Thanks in advance!

It depends, are you modelling the outside of the building too? If the point of entry into your fluid domain is a window then solar radiation will do just fine, passing through the window until it hits a solid wall beyond.

Regards

Stephen

Just as your describtion, I want to simulate the solar radiation through the windows, no outdoor air is needed to simulated. Is that means that i just need to switch on the "solar radiation" button, it will work on the fluid inside the building? Could you say a little bit clearly? Thanks!