THE SIMULATION OF ELECTRIFIED LIQUID JETS

The simulation of a two-dimensional electrified liquid jet is described. A finite difference technique is coupled with a computational fluid dynamic code to solve Poisson's equation and the Navier-Stokes equations at the electrostatic fluid-flow interface. The dynamics of free-surface electrohydrodynamic fluid flow are simulated for a dielectric fluid in an electrostatics nozzle and a conducting two-dimensional jet. The fluid flow in a nozzle is compared with and without an applied electric field, and the effects of adding a grounded conducting cylinder to the configuration is demonstrated. A set of time sequence graphs are used to illustrate the breakup of a charged jet into droplets, and the influence of viscosity on jet formation and breakup is depicted.