We consider the natural convection of air around the lamp bulb, heated from the inside by a filament. You may find text description for this example here: https://flowvision.ru/webhelp/tuten_31202/index.html?conjugate_radiation.htm (Conjugate radiation heat transfer) FlowVision version: 3.12.01 #Lamp #Radiation #Conjugation #Heattransfer #FlowVision #CFD #heating