• Corpus ID: 244478020

Simulation of Electrospray Emission Processes for Highly Conductive Liquids

  title={Simulation of Electrospray Emission Processes for Highly Conductive Liquids},
  author={Henry Huh and Richard E. Wirz},
An electrohydrodynamic numerical model is used to explore the electrospray emission behavior of both moderate and high electrical conductivity liquids under electrospray conditions. The Volume-of-Fluid method, incorporating a leaky-dielectric model with a charge relaxation consideration, is used to conserve charge to accurately model cone-jet formation and droplet breakup. The model is validated against experiments and agrees well with both droplet diameters and charge-to-mass ratio of emitted… 


Monodisperse Electrosprays of Low Electric Conductivity Liquids in the Cone-Jet Mode
  • Tang, Gómez
  • Physics
    Journal of colloid and interface science
  • 1996
An experimental investigation was performed on electrosprays of low electric conductivity liquids (heptane with different amounts of an antistatic additive) that were operated in the cone-jet mode and showed that the droplet size and the spray monodispersity were independent of the electrode configuration.
Current and droplet size in the electrospraying of liquids. Scaling laws
Numerical simulation of electrospraying in the cone-jet mode
This article solves numerically the equations of the leaky-dielectric model applied to cone jets. The solution is a function of the properties of the fluid and its flow rate, universal in that it
Electric measurements of charged sprays emitted by cone-jets
We use time-of-flight and energy analysis techniques to measure in a vacuum the charge, specific charge and stopping potential of primary and satellite droplets generated by electrosprays of tributyl
Direct measurement of ion evaporation kinetics from electrified liquid surfaces
When concentrated solutions of NaI in formamide with electrical conductivities K larger than 1.1 S/m are electrosprayed from a Taylor cone-jet in a vacuum, ions are evaporated at substantial rates
The current emitted by highly conducting Taylor cones
When a liquid meniscus held at the exit of a metallic capillary tube is charged to a high voltage V, the free surface often takes the form of a cone whose apex emits a steady microjet, and thus
Numerical simulation of electrospray in the cone-jet mode.
A comparison of the results with those calculated with a volume-of-fluid method showed that the numerical scheme presented here accurately describes the flow pattern within the entire liquid domain.
Revision of capillary cone-jet physics: electrospray and flow focusing.
This work makes a profound revision of the basic underlying physics of generic cone jets from thousands of experimental measurements, finding fundamental coincidences between flow focusing and electrospray as well.