SimScale CAE Forum

Radiation with natural convection in a room

Hello, everyone. I have a question about my results. I’m analyzing how the temperature in my room varies when using a 100W and a 20W bulb and I’m putting more emphasis on heat transfer by radiation (like radiation source) from the bulb. I expected the temperature to be proportional to the watts delivered by the bulb but the results are not and I would like to know the reason for this. Thank you.


case 20W-629W/m2

case 100W-3144W/m2
in both cases use an isosurface of 300 K and it occurs not only in the body but also in the surrounding air temperature (inside the room), which decreases in spite of having more radiation energy.

https://www.simscale.com/workbench/?pid=1904159553294461113&mi=spec%3A1ec622e0-10a8-4334-a550-6699ad0120a4%2Cservice%3ASIMULATION%2Cstrategy%3A15
this is the link of my project

Hi @jaguilarh!

Sorry for the very late response!! @CFD-SQUAD, can you please have a look at his project and make some suggestions?

Enjoy your weekend!

Jousef