Mixed and Forced Convection from an Array of Discrete Heat Sources in a VerticalChannel

摘要

Mixed and forced convection liquid cooling of discrete heat sources in a verticalchannel was investigated. Ten heat sources were flush mounted to one of the plexiglass channel walls, while the opposite wall was insulated. Measurements of heater surface temperatures were made for a channel Reynolds number range of 500-7300 and heat flux range of 510-2700 W/sq m. Temperature patterns on the heated surface were visualized using liquid crystals. Effects of flow pulsations were also investigated in the 0-1.25 Hz range.