Effect of confinement on droplet deformation in shear flow

Haobo Hua, Yibao Li, Jaemin Shin, Ha Kyu Song, Junseok Kim

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The dynamics of a single droplet under shear flow between two parallel plates is investigated by using the immersed boundary method. The immersed boundary method is appropriate for simulating the drop-ambient fluid interface. We apply a volume-conserving method using the normal vector of the surface to prevent mass loss of the droplet. In addition, we present a surface remeshing algorithm to cope with the distortion of droplet interface points caused by the shear flow. This mesh quality improvement in conjunction with the volume-conserving algorithm is particularly essential and critical for long time evolutions. We study the effect of wall confinement on the droplet dynamics. Numerical simulations show good agreement with previous experimental results and theoretical models.

Original languageEnglish
Pages (from-to)317-331
Number of pages15
JournalInternational Journal of Computational Fluid Dynamics
Volume27
Issue number8-10
DOIs
Publication statusPublished - 2013 Dec

Keywords

  • droplet deformation
  • immersed boundary method
  • remeshing
  • shear flow
  • volume conserving
  • wall effect

ASJC Scopus subject areas

  • Computational Mechanics
  • Aerospace Engineering
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Mechanics of Materials
  • Mechanical Engineering

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