Heat Transfer Augmentation by Two-Phase Impinging Jet

Heat transfer and fluid flow characteristics of air-water impinging jets were experimentally investigated under a fixed pumping power condition. The effects of dimensionless pumping power and the volumetric fraction on the Nusselt number were considered. The results showed that the Nusselt number had an optimum point at around 0.2 ∼ 0.3 of the volumetric fractions.