Auto Radiators – Study Regarding Air Flow along the Channels

In this paper will be presented the results of the measurements and experimental data processing performed on aluminium auto radiators manufactured in Romania. Also, will be exposed numerical simulations of air flow through an auto radiator, from the models studied. It will be study the convective heat exchange efficiency through Nusselt number and intensity of heat transfer by forced convection of air through the fins with sinusoidal profile using Colburn criterion. Further, the numerical simulation of air flow through a mini channel created by a fin with sinusoidal profile, considered on the width of the device, highlights the heat diffusivity through Prandtl number, along this channel, depending on the particularities of its geometric shape.