Discrete polydisperse spray

Keywords Discrete polydisperse spray Electric droplet charging Extension nozzle Ink-jet printing Monodisperse droplet stream Monodisperse spray Multihole orifice Modulated jet excitation Nozzle hole shapes Rapid prototyping Rayleigh-type jet break-up Solder ball production... 

Nozzle Design for Monodisperse and Discrete Polydisperse Sprays... 

Fig. 26.10 (a) Required and designed discrete polydisperse drop size spectra, (b) nozzle hole arrangement in the 11-holes orifice disk designed, (c) resultant discrete polydisperse spray produced at an excitation frequency of 47.3 kHz. Drop sizes range between 66 and 139 pm [10] (Reprinted from [10]. Copyright 2000. With permission frran Elsevier)... 

This part of this review reports about techniques for enforcing monodisperse droplet formation. The techniques must essentially allow for the formation of droplets with controlled sizes. One requirement may be that the droplet generators produce monodisperse streams of droplets. However, essentially the same technique appropriate for this purpose may be used for the controlled formation of sprays with discrete polydisperse drop size spectra also. We will also account for techniques that achieve the monodispersity of the drop streams at least approximately. 

G. Brenn On the controlled production of sprays with discrete polydisperse drop size spectra, Chem. Eng. Sci. 55, 5437-5444 (2000). 

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