Experimental Investigation on Heat Transfer Characteristics in a Rotating Disk with a Radial Inflow

In order to analyze the effect of flow coefficient and rotating Reynolds number on the heat transfer in rotating disk with radial inflow, its characteristics were studied by the experimental method. The distribution of local Nusselt number and change rules of averaged Nusselt number were obtained by testing surface temperature of rotating disk in different working conditions. The experiment results show that the local convection coefficient has multi-head distribution in a rotating disk with a radial inflow due to the complicated flow. The averaged Nusselt number and heat transfer effect were increased with the increase of the rotating Reynolds number and flow coefficient.