RT Journal Article ID 349de13a19e4c460 A1 Sindayihebura, Daniel A1 Cousin, Jean A1 Dumouchel, Christophe T1 Characterization of Sprays Produced by Low Frequency Ultrasonic Atomizers JF International Journal of Fluid Mechanics Research JO FMR YR 1997 FD 1997-12-01 VO 24 IS 4-6 SP 544 OP 555 AB The atomization of liquids by means of low frequency ultrasonic atomizers results from unstable surface waves generated on the free surface of a thin liquid film. These unstable waves are obtained from the tuning of the amplitude and the frequency of an imposed oscillation. The thin liquid film develops as the liquid spreads over the atomizing surface of the atomizer. This paper focuses on a systematic experimental analysis of the sprays produced by this type of atomizers. The thickness of the liquid film is measured. Its effects on the drop diameter are studied as are the effects of both the liquid's physical properties and the ultrasonic atomizer's characteristics. The relationship between the mean drop diameter and the surface wave wavelength is accurately determined. A mathematical approach based on the Maximum Entropy Formalism is successfully applied to theoretically determine the drop size distribution of the spray. PB Begell House LK https://www.dl.begellhouse.com/journals/71cb29ca5b40f8f8,10ab7b8829ad73aa,349de13a19e4c460.html