Resumen

FERREYRA, Gabriel; LUSTIG, Sonia; ROSEN, Marta  y  CABEZA, Cecilia. Spray Generation by Vibration of a Viscoelastic Fluid. Inf. tecnol. [online]. 2009, vol.20, n.1, pp. 91-98. ISSN 0718-0764.  doi: 10.4067/S0718-07642009000100011.

In this paper, viscoelastic liquids spray emission generated by vibration and the influence of their physical properties are studied. The fluid contained in a cell is subjected to a field of periodic vertical forces, for which the excitation amplitude and frequency are controlled. Different mixtures of kerosene with viscoelastic polymer were used and results were modelled using equations applicable to Newtonian fluids with acceptable results within the values of the operating conditions considered. Also, the dependence of drop size with the quantity of polymer added, the acceleration and the frequency applied was determined. It is concluded that Newtonian fluids models can be applied to liquids with characteristics similar to those studied in this work.

Palabras clave : viscoelastics fluids; spray formation; drop generation; newtonian fluids.