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Drop deformation and breakup with diffuse interface method

  • Xi'an Jiaotong University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Two-dimensional numerical simulation of the deformation and breakup of an isolated liquid drop suspended in immiscible viscous fluid under shear flow was performed with the diffuse interface method. The governing equations of the model were described by Navier - Stokes - Cahn - Hilliard equations. The surface tension was treated as a modified stress. In the paper, the critical Capillary number was plotted as a function of viscosity ratios with the method of approximation. Besides, From the numerical observations, the breakup of the droplets occurred by three mechanisms, namely, necking, end pinching, and capillary instability. Quantitative results for the deformation and breakup of drop are presented.

Original languageEnglish
Title of host publication6th International Symposium on Multiphase flow, Heat Mass Transfer and Energy Conversion
Pages945-950
Number of pages6
DOIs
StatePublished - 2010
Event6th International Symposium on Multiphase flow, Heat Mass Transfer and Energy Conversion - Xian, China
Duration: 11 Jul 200915 Jul 2009

Publication series

NameAIP Conference Proceedings
Volume1207
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference6th International Symposium on Multiphase flow, Heat Mass Transfer and Energy Conversion
Country/TerritoryChina
CityXian
Period11/07/0915/07/09

Keywords

  • Critical capillary number
  • Deformation and breakup
  • Diffuse interface method
  • Three mechanisms

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