RT Journal Article ID 167995c56e6dbd5c A1 Zhang, Jun A1 He, Hongzhou T1 SIMULATION ON MOTION OF A GROUP OF CHARGED DROPLETS IN AN ELECTROSTATIC SPRAY PROCESS JF Atomization and Sprays JO AAS YR 2012 FD 2012-06-28 VO 22 IS 1 SP 37 OP 56 K1 electrostatic spray K1 group of charged droplets K1 simulation K1 variable droplet number method AB Considering the droplet size and charge distributions, breakup length of the charged jet, electrical interaction between droplets, and especially, the variation of droplet number with time, the two-dimensional motion is simulated for a group of charged droplets continuously generated in an electrostatic spray process. The droplet spatial distributions obtained from simulation and from experiments are basically consistent. The simulation results show that the larger droplets move mainly in the central area of spray, while the smaller ones have a trend moving toward the edge area of spray. The results also show that the effect of the electrical interaction force between droplets on droplet motion is significant, and it cannot be ignored for cases with a fairly long distance from the capillary exit. In the area near the capillary exit, the electrical interaction force is very large and its direction also randomly changes during the droplet migration process. This leads to a significant fluctuation in the droplet velocity curve. With the increase of distance from the capillary exit, the electrical interaction force becomes small and relatively regular. This causes the droplet velocity and trajectory curves to gradually become smooth. In comparison, the curves of velocity and trajectory for large droplets are smoother than those for small droplets. In addition, droplet concentration, axial and radial velocity distributions, as well as the forces on the droplet are also obtained, and some local behaviors of droplet motion are revealed. PB Begell House LK https://www.dl.begellhouse.com/journals/6a7c7e10642258cc,1280f4656c21baac,167995c56e6dbd5c.html