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

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Abstract

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
Number of pages8
JournalChemie-Ingenieur-Technik
DOIs
Publication statusE-pub ahead of print - 1 Jan 2020

Keywords

  • 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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