Fluid Simulation-Supported Extraction Process Design: An Approach Towards Improving Current Models

Patrick Zimmermann, Tim Zeiner*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


In recent years, computational fluid dynamics (CFD) has become a valuable tool for the design of extraction processes. CFD simulations have been combined with population balances to account for coalescence and breakage. In this work, another approach to account for drop interactions is shown, namely, the incompressible Cahn-Hilliard/Navier-Stokes equations. To apply the Cahn-Hilliard equations, they have to be combined with a thermodynamic model. Here, a Koningsveld-Kleintjens approach is used to account for the mixing gap of the binary mixture. The suggested method was applied to analyze drops in a shear field and to investigate drop coalescence.

Original languageEnglish
Pages (from-to)907-913
Number of pages7
Issue number7
Early online date1 Jan 2020
Publication statusPublished - 1 Jul 2020


  • Computational fluid dynamics
  • Density gradient theory
  • Extraction
  • Liquid-liquid equilibria

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering

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