Numerical simulations of the impact and spreading of a particulate drop on a solid substrate

Hyun Jun Jeong, Wook Ryol Hwang, Chongyoup Kim

Research output: Contribution to journalArticle

Abstract

We present two-dimensional numerical simulations of the impact and spreading of a droplet containing a number of small particles on a flat solid surface, just after hitting the solid surface, to understand particle effects on spreading dynamics of a particle-laden droplet for the application to the industrial inkjet printing process. The Navier-Stokes equation is solved by a finite-element-based computational scheme that employs the level-set method for the accurate interface description between the drop fluid and air and a fictitious domain method for suspended particles to account for full hydrodynamic interaction. Focusing on the particle effect on droplet spreading and recoil behaviors, we report that suspended particles suppress the droplet oscillation and deformation, by investigating the drop deformations for various Reynolds numbers. This suppressed oscillatory behavior of the particulate droplet has been interpreted with the enhanced energy dissipation due to the presence of particles.

Original languageEnglish
Article number687961
JournalModelling and Simulation in Engineering
Volume2012
DOIs
Publication statusPublished - 2012

ASJC Scopus subject areas

  • Modelling and Simulation
  • Engineering(all)
  • Computer Science Applications

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