Article ID Journal Published Year Pages File Type
727020 Journal of Electrostatics 2012 6 Pages PDF
Abstract

The main objective of investigation was to study the effect of pulsating electrospray of high viscous and non-Newtonian sodium alginate on mono-dispersity of droplets. In the jet mode, employing the pulsating DC electric field at a critical frequency led to narrow size distribution of beads, produced from the droplets. Above the critical frequency, the size of beads was distributed over a wider range. The relationship between the dimensionless group representing diameter and the groups including: Weber, Reynolds, Electric Field and Frequency numbers was modeled according to genetic algorithm. The experimental results were found in good agreement with the model.

► The viscosity range used in this work was much higher than experimented before. ► The flow behavior and thixotropic properties of sodium alginate was characterized. ► Solutions’ flow behavior was shifted to pseudoplastic depending on concentration. ► Pulsed electric field leads to production of uniform size distribution of droplets. ► Electrospray modeling of viscous liquids under pulsating condition was carried out.

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Physical Sciences and Engineering Engineering Electrical and Electronic Engineering
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