Natural convection experiments on a heated horizontal cylinder in a differentially heated square cavity

Natural convection heat transfer from a heat generating horizontal cylinder enclosed in a square cavity, where a temperature difference exists across its vertical walls has been experimentally investigated for the range 2×104

► Natural convection from a horizontal cylinder to a differentially heated enclosure.
► The cylinder heat transfer increases due to interaction between cylinder and cavity.
► Cavity flow structures are broken down as the cylinder plume grows stronger.
► A transition is observed from flow dominated by the cavity to that by the cylinder.