ID 342

Effect of Fluid Viscosity on the Droplet Size and the Area Fraction Coverage

 

Abstract:

A pressurized spray gun was used to cover a glass substrate with various concentrations of aqueous glycerin solutions. The effect of viscosity on the droplet size distribution was measured by capturing images of droplets in-flight using a DropSizer and tallying their relative frequency. The rate of area coverage was captured using a high-speed camera positioned behind the glass substrate. The droplet size distribution and the droplet flux were then used to develop a probabilistic model of the rate of area coverage, which was compared to the values measured experimentally.