Structure and Mass Flux Distribution of a Side-opened Hollow Cone Spray Generated by Swirl Pressure Atomizers (original) (raw)

A sufficient large taper angle nozzle fitted with a swirl injector proved to provide a robust side-ope ned spray of which structure is less influenced by the change in the surrounding air pressure and temperature. Neve rtheless, the mass distribution of the injected mass is not unifo rm and it has a distribution that depends on the ta per angle and the flow angle. Analysis has been performed to calculat e the mass distribution which is a necessary initia l condition for spray modeling. The side-opened angle was evaluated for different nozzle taper angles. The derived equ ation of mass distribution requires previous knowledge of no zzle exit film thickness and flow angle, which were measured experimentally.