Research

Numerical simulation of multiphase flows with moving contact lines

Principal investigator: Yi SUI
Co-investigator(s): P.D.M.Spelt, H.Ding, F.H.Zhang, E.Q.Li and S.T.Thoroddsen

A novel droplet ejection mode for rapid spreading: second stage pinch off. Results are for experiment and numerical simulation.Multiphase flows with moving contact lines are widely found in nature and in industrial applications, including droplet spreading/splashing, coating flows, oil/gas transport, carbon storage and oil recovery, microfluidcs, boiling/condensation etc. The manner in which contact lines can move has been a subject of a long-standing debate in a mathematical and physical context, and requires further study on a molecular scale.
The aim of the present research is threefold:

  1. To develop multi-scale numerical modelling and powerful simulation tools, using numerical methods including diffuse interface, level-set, front tracking, as well as molecular dynamics, for studying multiphase flows with moving contact lines;
  2. to develop fundamental understanding of the flow physics of the moving contact lines;
  3. to study various practical problems involves multiphase flows with moving contact lines, i.e. displacement flows (oil by CO2 for example) in porous media, spray cooling, boiling/condensation, and to provide useful information which would benefit industries.